A simple distortion effect box could use checking. | Electronics Forum (Circuits, Projects and Microcontrollers)

<!DOCTYPE html> <html id="XF" lang="en-US" dir="LTR" data-app="public" data-template="thread_view_type_question" data-container-key="node-10" data-content-key="thread-166832" data-logged-in="false" data-cookie-prefix="xf_" data-csrf="1732383907,da8b1b4d844bb08ef5998eaa2632197a" class="has-no-js template-thread_view_type_question XenBase layout-classic style-light sidebar-right xb-toggle-default xb-sidebar-show" data-run-jobs=""> <head> <link rel="amphtml" href="https://www.electro-tech-online.com/threads/a-simple-distortion-effect-box-could-use-checking.166832/?amp=1"> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=Edge" /> <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover"> <meta name="google-site-verification" content="8aECyKQ0jTEfZHF2mNguWwCvxcGSDIcHlRgLdE6BSCE" />  <script async src="https://securepubads.g.doubleclick.net/tag/js/gpt.js"></script> <script> window.googletag = window.googletag || {cmd: []}; googletag.cmd.push(function() { var pathParts = window.location.pathname.substr(1).split('/'); var mapHeader = googletag.sizeMapping() .addSize([768, 200], [728, 90]) .addSize([0, 0], [300, 250]) .build(); var mapLargeHeader = googletag.sizeMapping() .addSize([1024, 200], [[970, 90], [970, 250]]) .addSize([0, 0], [300, 250]) .build(); var mapWallpaper = googletag.sizeMapping() .addSize([1024, 500], [[1, 1]]) .addSize([0, 0], [[1, 1]]) .build(); var gptSlots = []; gptSlots[0] = googletag.defineSlot('/5272491/ee_network/eto_header', [[300, 250], [728, 90]], 'div-gpt-eto-header') .defineSizeMapping(mapHeader) .addService(googletag.pubads()); gptSlots[1] = googletag.defineSlot('/5272491/ee_network/eto_largeleader', [[970, 90], [970, 250]], 'div-gpt-eto_largeleader') .defineSizeMapping(mapLargeHeader) .addService(googletag.pubads()); gptSlots[2] = googletag.defineSlot('/5272491/ee_network/eto_wallpaper', [[1, 1]], 'div-gpt-eto_wallpaper') .defineSizeMapping(mapWallpaper) .addService(googletag.pubads()); googletag.defineSlot('/5272491/ee_network/eto_customsearchbox', [[300, 90]], 'div-gpt-eto_customsearchbox').addService(googletag.pubads()); googletag.defineSlot('/5272491/ee_network/eto_sidebar1', [[300, 250], [300, 600]], 'div-gpt-eto_sidebar1').addService(googletag.pubads()); googletag.defineSlot('/5272491/ee_network/eto_sidebarbottom', [[300, 250], [300, 600]], 'div-gpt-eto_sidebarbottom').addService(googletag.pubads()); googletag.defineSlot('/5272491/ee_network/eto_thread1', [[728, 90]], 'div-gpt-eto_thread1').addService(googletag.pubads()); googletag.defineSlot('/5272491/ee_network/eto_thread2', [[728, 90]], 'div-gpt-eto_thread2').addService(googletag.pubads()); googletag.defineSlot('/5272491/ee_network/eto_thread3', [[728, 90]], 'div-gpt-eto_thread3').addService(googletag.pubads()); googletag.pubads().enableSingleRequest(); googletag.pubads().collapseEmptyDivs(); googletag.pubads().setTargeting('articletitle', pathParts[0] ? pathParts[0]: 'home-page'); googletag.enableServices(); }); </script>  <title>A simple distortion effect box could use checking. | Electronics Forum (Circuits, Projects and Microcontrollers)</title> <link rel="manifest" href="/webmanifest.php"> <meta name="theme-color" content="#232a35" /> <meta name="apple-mobile-web-app-title" content="Electronics Forum (Circuits, Projects and Microcontrollers)"> <meta name="description" content="Hello, I'm working on a simple effects distortion box for guitar, based on the Elektra Distortion circuit. 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It may not display this or other websites correctly.<br />You should upgrade or use an <a href="https://www.google.com/chrome/" target="_blank" rel="noopener">alternative browser</a>.</div> <div class="p-body-header"> <div class="p-title "> <h1 class="p-title-value">A simple distortion effect box could use checking.</h1> </div> <div class="p-description"> <ul class="listInline listInline--bullet"> <li> <i class="fa--xf fal fa-user" aria-hidden="true" title="Thread starter"></i> <span class="u-srOnly">Thread starter</span> <a href="/members/tonyame.322763/" class="username u-concealed" dir="auto" data-user-id="322763" data-xf-init="member-tooltip">TonyAme</a> </li> <li> <i class="fa--xf fal fa-clock" aria-hidden="true" title="Start date"></i> <span class="u-srOnly">Start date</span> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/" class="u-concealed"><time class="u-dt" dir="auto" datetime="2024-10-29T18:08:37-0700" data-time="1730250517" data-date-string="Oct 29, 2024" data-time-string="6:08 PM" title="Oct 29, 2024 at 6:08 PM">Oct 29, 2024</time></a> </li> <li> <dl class="tagList tagList--thread-166832 "> <dt> <i class="fa--xf fal fa-tags" aria-hidden="true" title="Tags"></i> <span class="u-srOnly">Tags</span> </dt> <dd> <span class="js-tagList"> <a href="/tags/distortion-box/" class="tagItem tagItem--tag_distortion-box" dir="auto"> distortion box </a> <a href="/tags/elektra-distortion/" class="tagItem tagItem--tag_elektra-distortion" dir="auto"> elektra distortion </a> <a href="/tags/fuzz-box/" class="tagItem tagItem--tag_fuzz-box" dir="auto"> fuzz box </a> <a href="/tags/guitar-effects/" class="tagItem tagItem--tag_guitar-effects" dir="auto"> guitar effects </a> <a href="/tags/guitar-overdrive/" class="tagItem tagItem--tag_guitar-overdrive" dir="auto"> guitar overdrive </a> </span> </dd> </dl> </li> </ul> </div> </div> <div class="p-body-main p-body-main--withSidebar "> <div class="p-body-contentCol"></div> <div class="p-body-sidebarCol"></div> <div class="p-body-content"> <div class="p-body-pageContent"> <div class="block block--messages block--close" data-xf-init="lightbox select-to-quote" data-message-selector=".js-post" data-lb-id="thread-166832"> <div class="block-outer"></div> <div class="block-outer js-threadStatusField"></div> <div class="block-container"> <div class="block-body"> <article class="message message--post js-post js-inlineModContainer " data-author="TonyAme" data-content="post-1456877" id="js-post-1456877" > <span class="u-anchorTarget" id="post-1456877"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" > <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/tonyame.322763/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="322763" data-xf-init="member-tooltip" style="background-color: #145252; color: #47d1d1"> <span class="avatar-u322763-m" role="img" aria-label="TonyAme">T</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/tonyame.322763/" class="username " dir="auto" data-user-id="322763" data-xf-init="member-tooltip">TonyAme</a></h4> <h5 class="userTitle message-userTitle" dir="auto">New Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456877" rel="nofollow" > <time class="u-dt" dir="auto" datetime="2024-10-29T18:08:37-0700" data-time="1730250517" data-date-string="Oct 29, 2024" data-time-string="6:08 PM" title="Oct 29, 2024 at 6:08 PM">Oct 29, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456877" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1456877/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456877" rel="nofollow"> #1 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1456877" data-lb-caption-desc="TonyAme · Oct 29, 2024 at 6:08 PM"> <article class="message-body js-selectToQuote"> <div > <div class="bbWrapper">Hello,<br /> I'm working on a simple effects distortion box for guitar, based on the Elektra Distortion circuit. I could use some others opinions and advice. <br /> <br /> 1. I have 2 pairs of diodes used for clipping the signal on the output, one pair will be silicon, the other pair will be germanium. Would my selector swith (SPDT toggle) work the way I think it will, selecting one pair (silicon), or the other (germanium)?<br /> <br /> 2. Also if anyone can point out any problems I might have with the basic layout. *The P-Channel MOSFET is used for reverse polarity protection.<br /> <br /> 3. I added extra connections to the 3PDT footswitch in case I need to change the wiring of the switch.<br /> <br /> Sincere thanks for any help, advice.<br /> Tony<br /> <script class="js-extraPhrases" type="application/json"> { "lightbox_close": "Close", "lightbox_next": "Next", "lightbox_previous": "Previous", "lightbox_error": "The requested content cannot be loaded. Please try again later.", "lightbox_start_slideshow": "Start slideshow", "lightbox_stop_slideshow": "Stop slideshow", "lightbox_full_screen": "Full screen", "lightbox_thumbnails": "Thumbnails", "lightbox_download": "Download", "lightbox_share": "Share", "lightbox_zoom": "Zoom", "lightbox_new_window": "New window", "lightbox_toggle_sidebar": "Toggle sidebar" } </script> <div class="bbImageWrapper js-lbImage" title="elektraDistortion2.png" data-src="https://www.electro-tech-online.com/attachments/elektradistortion2-png.147590/" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1"> <img src="https://www.electro-tech-online.com/attachments/elektradistortion2-png.147590/" data-url="" class="bbImage" data-zoom-target="1" style="" alt="elektraDistortion2.png" title="elektraDistortion2.png" width="909" height="587" loading="lazy" /> </div></div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> </div> </div> </div> <div class="block" id="js-solutionHighlightBlock"> <div class="block-container"> <div class="block-body"> <article class="message message--simple"> <div class="message-inner js-solutionHeader"> <div class="message-cell message-cell--solutionHeader"> Solution </div> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <header class="message-user" itemprop="" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/analogkid.175399/"> <meta itemprop="name" content="AnalogKid" /> <meta itemprop="url" content="https://www.electro-tech-online.com/members/analogkid.175399/" /> <div class="message-avatar"> <div class="message-avatar-wrapper"> <a href="/members/analogkid.175399/" class="avatar avatar--s" data-user-id="175399" data-xf-init="member-tooltip"> <img src="/data/avatars/s/175/175399.jpg?1432320227" srcset="/data/avatars/m/175/175399.jpg?1432320227 2x" alt="AnalogKid" class="avatar-u175399-s" width="48" height="48" loading="lazy" itemprop="image" /> </a> </div> </div> <span class="message-userArrow"></span> </header> </div> <div class="message-cell message-cell--main"> <header class="message-attribution message-attribution--plain"> <ul class="listInline listInline--bullet"> <li class="message-attribution-user"> <a href="/members/analogkid.175399/" class="avatar avatar--xxs" data-user-id="175399" data-xf-init="member-tooltip"> <img src="/data/avatars/s/175/175399.jpg?1432320227" alt="AnalogKid" class="avatar-u175399-s" width="48" height="48" loading="lazy" /> </a> <h4 class="attribution"><a href="/members/analogkid.175399/" class="username " dir="auto" data-user-id="175399" data-xf-init="member-tooltip">AnalogKid</a></h4> </li> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456880" class="u-concealed" data-xf-click="attribution" data-content-selector="#post-1456880" rel="nofollow"><time class="u-dt" dir="auto" datetime="2024-10-29T19:34:57-0700" data-time="1730255697" data-date-string="Oct 29, 2024" data-time-string="7:34 PM" title="Oct 29, 2024 at 7:34 PM">Oct 29, 2024</time></a> </li> </ul> </header> <article class="message-body"> <div class="message-expandWrapper js-expandWatch"> <div class="message-expandContent message-expandContent--small js-expandContent"> <div class="bbWrapper">The SW1 diode switching is not correct. Notice that when the switch is in the upper position as shown, D2 and D3 still are in parallel across VR1. Expand SW1 to DPDT, and switch both sides of the diode networks.<br /> <br /> Add a resistor from the Q2 drain to source, to assure a rapid and complete turn-off.<br /> <br /> There are two "D1"s on the schematic.<br /> <br /> Since either R5 or R6 always is in the circuit, you can eliminate one of them and move the other to the left side of SW1 (after C3).<br /> <br /> ak</div> </div> <div class="message-expandLink"></div> </div> </article> <footer class="message-footer"> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--internal"> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456880" class="actionBar-action actionBar-action--view" data-xf-click="attribution" data-content-selector="#post-1456880" rel="nofollow">View full post</a> </div> </div> </footer> </div> </div> </article> </div> </div> </div> <div class="block block--messages" data-xf-init="" data-type="post" data-href="/inline-mod/" data-search-target="*"> <span class="u-anchorTarget" id="posts"></span> <div class="block-outer"><div class="block-outer-opposite"> <div class="tabs tabs--standalone tabs--standalone--small tabs--standalone--inline"> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/" class="tabs-tab is-active" rel="nofollow"> Sort by date </a> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/?order=vote_score" class="tabs-tab " rel="nofollow"> Sort by votes </a> </div> </div></div> <div class="block-container lbContainer" data-xf-init="lightbox select-to-quote" data-message-selector=".js-post" data-lb-id="thread-166832" data-lb-universal="0"> <div class="block-body js-replyNewMessageContainer"> <article class="message message--post message--solution js-post js-inlineModContainer " data-author="AnalogKid" data-content="post-1456880" id="js-post-1456880" itemscope itemtype="https://schema.org/Answer" itemid="https://www.electro-tech-online.com/posts/1456880/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/a-simple-distortion-effect-box-could-use-checking.166832/" /> <span class="u-anchorTarget" id="post-1456880"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/analogkid.175399/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/analogkid.175399/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/analogkid.175399/" class="avatar avatar--m" data-user-id="175399" data-xf-init="member-tooltip"> <img src="/data/avatars/m/175/175399.jpg?1432320227" alt="AnalogKid" class="avatar-u175399-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/analogkid.175399/" class="username " dir="auto" data-user-id="175399" data-xf-init="member-tooltip"><span itemprop="name">AnalogKid</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Well-Known Member</h5> <div class="userBanner userBanner userBanner--gray message-userBanner" itemprop="jobTitle"><span class="userBanner-before"></span><strong>Most Helpful Member</strong><span class="userBanner-after"></span></div> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456880" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-10-29T19:34:57-0700" data-time="1730255697" data-date-string="Oct 29, 2024" data-time-string="7:34 PM" title="Oct 29, 2024 at 7:34 PM" itemprop="datePublished">Oct 29, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456880" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1456880/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456880" rel="nofollow"> #2 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1456880" data-lb-caption-desc="AnalogKid · Oct 29, 2024 at 7:34 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">The SW1 diode switching is not correct. Notice that when the switch is in the upper position as shown, D2 and D3 still are in parallel across VR1. Expand SW1 to DPDT, and switch both sides of the diode networks.<br /> <br /> Add a resistor from the Q2 drain to source, to assure a rapid and complete turn-off.<br /> <br /> There are two "D1"s on the schematic.<br /> <br /> Since either R5 or R6 always is in the circuit, you can eliminate one of them and move the other to the left side of SW1 (after C3).<br /> <br /> ak</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <div class="message-lastEdit"> Last edited: <time class="u-dt" dir="auto" datetime="2024-10-29T19:57:57-0700" data-time="1730257077" data-date-string="Oct 29, 2024" data-time-string="7:57 PM" title="Oct 29, 2024 at 7:57 PM" itemprop="dateModified">Oct 29, 2024</time> </div> <aside class="message-signature"> <div class="bbWrapper">Maslow Antagonist</div> </aside> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList is-active"> <ul class="reactionSummary"> <li><span class="reaction reaction--small reaction--1" data-reaction-id="1"><i aria-hidden="true"></i><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="reaction-sprite js-reaction" alt="Like" title="Like" /></span></li> </ul> <span class="u-srOnly">Reactions:</span> <a class="reactionsBar-link" href="/posts/1456880/reactions" data-xf-click="overlay" data-cache="false" rel="nofollow"><bdi>TonyAme</bdi></a> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1456880"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> <span class="solutionIcon is-solution" data-xf-init="tooltip" title="Solution"> <span class="u-srOnly">Solution</span> </span> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="TonyAme" data-content="post-1456881" id="js-post-1456881" itemscope itemtype="https://schema.org/Answer" itemid="https://www.electro-tech-online.com/posts/1456881/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/a-simple-distortion-effect-box-could-use-checking.166832/" /> <span class="u-anchorTarget" id="post-1456881"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/tonyame.322763/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/tonyame.322763/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/tonyame.322763/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="322763" data-xf-init="member-tooltip" style="background-color: #145252; color: #47d1d1"> <span class="avatar-u322763-m" role="img" aria-label="TonyAme">T</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/tonyame.322763/" class="username " dir="auto" data-user-id="322763" data-xf-init="member-tooltip"><span itemprop="name">TonyAme</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">New Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456881" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-10-29T19:42:54-0700" data-time="1730256174" data-date-string="Oct 29, 2024" data-time-string="7:42 PM" title="Oct 29, 2024 at 7:42 PM" itemprop="datePublished">Oct 29, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456881" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1456881/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456881" rel="nofollow"> #3 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1456881" data-lb-caption-desc="TonyAme · Oct 29, 2024 at 7:42 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 175399" data-quote="AnalogKid" data-source="post: 1456880" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1456880" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1456880">AnalogKid said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> The SW1 diode switching is not correct. Notice that when the switch is in the upper position as shown, D2 and D3 still are in parallel across VR1. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Yes, I see it now. Thank you for bringing that to my attention, really appreciate it.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1456881"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="TonyAme" data-content="post-1456884" id="js-post-1456884" itemscope itemtype="https://schema.org/Answer" itemid="https://www.electro-tech-online.com/posts/1456884/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/a-simple-distortion-effect-box-could-use-checking.166832/" /> <span class="u-anchorTarget" id="post-1456884"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/tonyame.322763/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/tonyame.322763/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/tonyame.322763/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="322763" data-xf-init="member-tooltip" style="background-color: #145252; color: #47d1d1"> <span class="avatar-u322763-m" role="img" aria-label="TonyAme">T</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/tonyame.322763/" class="username " dir="auto" data-user-id="322763" data-xf-init="member-tooltip"><span itemprop="name">TonyAme</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">New Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456884" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-10-29T21:41:59-0700" data-time="1730263319" data-date-string="Oct 29, 2024" data-time-string="9:41 PM" title="Oct 29, 2024 at 9:41 PM" itemprop="datePublished">Oct 29, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456884" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1456884/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456884" rel="nofollow"> #4 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1456884" data-lb-caption-desc="TonyAme · Oct 29, 2024 at 9:41 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">Updated schematic with corrected diode pair switching. Sincere thanks.<br /> Tony<div class="bbImageWrapper js-lbImage" title="elektraDistortion3.png" data-src="https://www.electro-tech-online.com/attachments/elektradistortion3-png.147592/" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1"> <img src="https://www.electro-tech-online.com/attachments/elektradistortion3-png.147592/" data-url="" class="bbImage" data-zoom-target="1" style="" alt="elektraDistortion3.png" title="elektraDistortion3.png" width="867" height="551" loading="lazy" /> </div></div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1456884"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="AnalogKid" data-content="post-1456904" id="js-post-1456904" itemscope itemtype="https://schema.org/Answer" itemid="https://www.electro-tech-online.com/posts/1456904/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/a-simple-distortion-effect-box-could-use-checking.166832/" /> <span class="u-anchorTarget" id="post-1456904"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/analogkid.175399/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/analogkid.175399/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/analogkid.175399/" class="avatar avatar--m" data-user-id="175399" data-xf-init="member-tooltip"> <img src="/data/avatars/m/175/175399.jpg?1432320227" alt="AnalogKid" class="avatar-u175399-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/analogkid.175399/" class="username " dir="auto" data-user-id="175399" data-xf-init="member-tooltip"><span itemprop="name">AnalogKid</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Well-Known Member</h5> <div class="userBanner userBanner userBanner--gray message-userBanner" itemprop="jobTitle"><span class="userBanner-before"></span><strong>Most Helpful Member</strong><span class="userBanner-after"></span></div> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456904" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-10-30T04:33:06-0700" data-time="1730287986" data-date-string="Oct 30, 2024" data-time-string="4:33 AM" title="Oct 30, 2024 at 4:33 AM" itemprop="datePublished">Oct 30, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456904" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1456904/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456904" rel="nofollow"> #5 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1456904" data-lb-caption-desc="AnalogKid · Oct 30, 2024 at 4:33 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">I must correct myself. With the re-drawn schematic (and the removal of R3), it is clear that SW1 can go back to being a SPDT switch.<br /> <br /> To paraphrase MacGuyver: A good schematic will always get you where you want to go.<br /> <br /> ak</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <aside class="message-signature"> <div class="bbWrapper">Maslow Antagonist</div> </aside> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList is-active"> <ul class="reactionSummary"> <li><span class="reaction reaction--small reaction--1" data-reaction-id="1"><i aria-hidden="true"></i><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="reaction-sprite js-reaction" alt="Like" title="Like" /></span></li> </ul> <span class="u-srOnly">Reactions:</span> <a class="reactionsBar-link" href="/posts/1456904/reactions" data-xf-click="overlay" data-cache="false" rel="nofollow"><bdi>TonyAme</bdi></a> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1456904"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="TonyAme" data-content="post-1456927" id="js-post-1456927" itemscope itemtype="https://schema.org/Answer" itemid="https://www.electro-tech-online.com/posts/1456927/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/a-simple-distortion-effect-box-could-use-checking.166832/" /> <span class="u-anchorTarget" id="post-1456927"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/tonyame.322763/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/tonyame.322763/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/tonyame.322763/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="322763" data-xf-init="member-tooltip" style="background-color: #145252; color: #47d1d1"> <span class="avatar-u322763-m" role="img" aria-label="TonyAme">T</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/tonyame.322763/" class="username " dir="auto" data-user-id="322763" data-xf-init="member-tooltip"><span itemprop="name">TonyAme</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">New Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456927" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-10-30T17:58:12-0700" data-time="1730336292" data-date-string="Oct 30, 2024" data-time-string="5:58 PM" title="Oct 30, 2024 at 5:58 PM" itemprop="datePublished">Oct 30, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456927" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1456927/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456927" rel="nofollow"> #6 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1456927" data-lb-caption-desc="TonyAme · Oct 30, 2024 at 5:58 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 175399" data-quote="AnalogKid" data-source="post: 1456904" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1456904" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1456904">AnalogKid said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> I must correct myself. With the re-drawn schematic (and the removal of R3), it is clear that SW1 can go back to being a SPDT switch.<br /> <br /> To paraphrase MacGuyver: A good schematic will always get you where you want to go.<br /> <br /> ak </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Oh boy... I feel embarrassed. Thanks again for that. I was looking at the attached schematic from (freestompboxes.org) when I updated mine (above, with the DPDT switch.) An interesting/versatile way of wiring the clipping diodes.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> <section class="message-attachments"> <h4 class="block-textHeader">Attachments</h4> <ul class="attachmentList"> <li class="file file--linked"> <a class="u-anchorTarget" id="attachment-147604"></a> <a class="file-preview js-lbImage" data-lb-sidebar-href="" data-lb-caption-extra-html="" href="/attachments/fulgora-v0-1-png.147604/" target="_blank"> <img src="/data/attachments/136/136589-f233633a2a25556c0ce1e0e21bb79867.jpg" alt="fulgora.v0.1.png" width="177" height="100" loading="lazy" /> </a> <div class="file-content"> <div class="file-info"> <span class="file-name" title="fulgora.v0.1.png">fulgora.v0.1.png</span> <div class="file-meta"> 68.9 KB · Views: 34 </div> </div> </div> </li> </ul> </section> </div> <div class="message-lastEdit"> Last edited: <time class="u-dt" dir="auto" datetime="2024-10-30T18:13:53-0700" data-time="1730337233" data-date-string="Oct 30, 2024" data-time-string="6:13 PM" title="Oct 30, 2024 at 6:13 PM" itemprop="dateModified">Oct 30, 2024</time> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1456927"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="TonyAme" data-content="post-1456929" id="js-post-1456929" itemscope itemtype="https://schema.org/Answer" itemid="https://www.electro-tech-online.com/posts/1456929/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/a-simple-distortion-effect-box-could-use-checking.166832/" /> <span class="u-anchorTarget" id="post-1456929"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/tonyame.322763/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/tonyame.322763/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/tonyame.322763/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="322763" data-xf-init="member-tooltip" style="background-color: #145252; color: #47d1d1"> <span class="avatar-u322763-m" role="img" aria-label="TonyAme">T</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/tonyame.322763/" class="username " dir="auto" data-user-id="322763" data-xf-init="member-tooltip"><span itemprop="name">TonyAme</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">New Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456929" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-10-30T18:48:19-0700" data-time="1730339299" data-date-string="Oct 30, 2024" data-time-string="6:48 PM" title="Oct 30, 2024 at 6:48 PM" itemprop="datePublished">Oct 30, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456929" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1456929/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456929" rel="nofollow"> #7 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1456929" data-lb-caption-desc="TonyAme · Oct 30, 2024 at 6:48 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">Updated Electra Distortion-type schematic, with tone control and spdt clipping diode switching. Thanks.<div class="bbImageWrapper js-lbImage" title="elektraDistortion4.png" data-src="https://www.electro-tech-online.com/attachments/elektradistortion4-png.147605/" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1"> <img src="https://www.electro-tech-online.com/attachments/elektradistortion4-png.147605/" data-url="" class="bbImage" data-zoom-target="1" style="" alt="elektraDistortion4.png" title="elektraDistortion4.png" width="825" height="598" loading="lazy" /> </div></div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" 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itemid="https://www.electro-tech-online.com/threads/a-simple-distortion-effect-box-could-use-checking.166832/" /> <span class="u-anchorTarget" id="post-1456947"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/analogkid.175399/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/analogkid.175399/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/analogkid.175399/" class="avatar avatar--m" data-user-id="175399" data-xf-init="member-tooltip"> <img src="/data/avatars/m/175/175399.jpg?1432320227" alt="AnalogKid" class="avatar-u175399-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/analogkid.175399/" class="username " dir="auto" 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itemprop="datePublished">Oct 31, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456947" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1456947/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/a-simple-distortion-effect-box-could-use-checking.166832/post-1456947" rel="nofollow"> #8 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1456947" data-lb-caption-desc="AnalogKid · Oct 31, 2024 at 6:24 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 322763" data-quote="TonyAme" data-source="post: 1456927" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1456927" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1456927">TonyAme said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> I was looking at the attached schematic from (freestompboxes.org) when I updated mine (above, with the DPDT switch.) An interesting/versatile way of wiring the clipping diodes. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> Because it does not indicate that the two switches are ganged, it does give the option of pairing one Si and one Ge diode. In my dealings with guitarists and boxes, no one has ever asked me about this.<br /> <br /> ak</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <aside class="message-signature"> <div class="bbWrapper">Maslow Antagonist</div> </aside> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList is-active"> <ul class="reactionSummary"> <li><span class="reaction reaction--small reaction--1" data-reaction-id="1"><i aria-hidden="true"></i><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="reaction-sprite js-reaction" alt="Like" title="Like" /></span></li> </ul> <span class="u-srOnly">Reactions:</span> <a class="reactionsBar-link" href="/posts/1456947/reactions" data-xf-click="overlay" data-cache="false" rel="nofollow"><bdi>TonyAme</bdi></a> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1456947"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> </div> </div> <div class="block-outer block-outer--after"> <div class="block-outer-opposite"> <a href="/login/" class="button--link button--wrap button" data-xf-click="overlay"><span class="button-text"> You must log in or register to reply here. </span></a> </div> </div> </div> <div class="inContentAd"><div id='div-gpt-eto_thread1'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-eto_thread1'); 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Are you sure you want to submit this form?", attach: "Attach files", rich_text_box: "Rich text box", close: "Close", link_copied_to_clipboard: "Link copied to clipboard.", text_copied_to_clipboard: "Text copied to clipboard.", loading: "Loading…", you_have_exceeded_maximum_number_of_selectable_items: "You have exceeded the maximum number of selectable items.", processing: "Processing", 'processing...': "Processing…", showing_x_of_y_items: "Showing {count} of {total} items", showing_all_items: "Showing all items", no_items_to_display: "No items to display", number_button_up: "Increase", number_button_down: "Decrease", push_enable_notification_title: "Push notifications enabled successfully at Electronics Forum (Circuits, Projects and Microcontrollers)", push_enable_notification_body: "Thank you for enabling push notifications!", pull_down_to_refresh: "Pull down to refresh", release_to_refresh: "Release to refresh", refreshing: "Refreshing…" , "svStandardLib_time.day": "{count} day", "svStandardLib_time.days": "{count} days", "svStandardLib_time.hour": "{count} hour", "svStandardLib_time.hours": "{count} hours", "svStandardLib_time.minute": "{count} minutes", "svStandardLib_time.minutes": "{count} minutes", "svStandardLib_time.month": "{count} month", "svStandardLib_time.months": "{count} months", "svStandardLib_time.second": "{count} second", "svStandardLib_time.seconds": "{count} seconds", "svStandardLib_time.week": "time.week", "svStandardLib_time.weeks": "{count} weeks", "svStandardLib_time.year": "{count} year", "svStandardLib_time.years": "{count} years" }); </script> <form style="display:none" hidden="hidden"> <input type="text" name="_xfClientLoadTime" value="" id="_xfClientLoadTime" title="_xfClientLoadTime" tabindex="-1" /> </form>    <div id='div-gpt-eto_wallpaper'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-eto_wallpaper'); }); </script> </div>  <script type="application/ld+json"> { "@context": "https://schema.org", "@type": "QAPage", "url": "https://www.electro-tech-online.com/threads/a-simple-distortion-effect-box-could-use-checking.166832/", "mainEntity": { "@type": "Question", "@id": "https://www.electro-tech-online.com/threads/a-simple-distortion-effect-box-could-use-checking.166832/", "name": "A simple distortion effect box could use checking.", "datePublished": "2024-10-30T01:08:37+00:00", "keywords": "distortion box, elektra distortion, fuzz box, guitar effects, guitar overdrive", "url": "https://www.electro-tech-online.com/threads/a-simple-distortion-effect-box-could-use-checking.166832/", "image": "https://www.electro-tech-online.com/attachments/elektradistortion2-png.147590/", "text": "Hello,\nI'm working on a simple effects distortion box for guitar, based on the Elektra Distortion circuit. I could use some others opinions and advice. \n\n1. I have 2 pairs of diodes used for clipping the signal on the output, one pair will be silicon, the other pair will be germanium. Would my selector swith (SPDT toggle) work the way I think it will, selecting one pair (silicon), or the other (germanium)?\n\n2. Also if anyone can point out any problems I might have with the basic layout. *The P-Channel MOSFET is used for reverse polarity protection.\n\n3. I added extra connections to the 3PDT footswitch in case I need to change the wiring of the switch.\n\nSincere thanks for any help, advice.\nTony", "answerCount": 7, "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.electro-tech-online.com/members/tonyame.322763/", "name": "TonyAme", "url": "https://www.electro-tech-online.com/members/tonyame.322763/" }, "acceptedAnswer": { "@type": "Answer", "datePublished": "2024-10-30T02:34:57+00:00", "dateModified": "2024-10-30T02:57:57+00:00", "url": "https://www.electro-tech-online.com/posts/1456880/", "text": "The SW1 diode switching is not correct. Notice that when the switch is in the upper position as shown, D2 and D3 still are in parallel across VR1. Expand SW1 to DPDT, and switch both sides of the diode networks.\n\nAdd a resistor from the Q2 drain to source, to assure a rapid and complete turn-off.\n\nThere are two \"D1\"s on the schematic.\n\nSince either R5 or R6 always is in the circuit, you can eliminate one of them and move the other to the left side of SW1 (after C3).\n\nak", "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.electro-tech-online.com/members/analogkid.175399/", "name": "AnalogKid", "url": "https://www.electro-tech-online.com/members/analogkid.175399/" } }, "suggestedAnswer": [ { "@type": "Answer", "datePublished": "2024-10-31T13:24:25+00:00", "url": "https://www.electro-tech-online.com/posts/1456947/", "text": "I was looking at the attached schematic from (freestompboxes.org) when I updated mine (above, with the DPDT switch.) An interesting/versatile way of wiring the clipping diodes.\n\n\nBecause it does not indicate that the two switches are ganged, it does give the option of pairing one Si and one Ge diode. In my dealings with guitarists and boxes, no one has ever asked me about this.\n\nak", "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.electro-tech-online.com/members/analogkid.175399/", "name": "AnalogKid", "url": "https://www.electro-tech-online.com/members/analogkid.175399/" } }, { "@type": "Answer", "datePublished": "2024-10-31T01:48:19+00:00", "url": "https://www.electro-tech-online.com/posts/1456929/", "text": "Updated Electra Distortion-type schematic, with tone control and spdt clipping diode switching. Thanks.", "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.electro-tech-online.com/members/tonyame.322763/", "name": "TonyAme", "url": "https://www.electro-tech-online.com/members/tonyame.322763/" } }, { "@type": "Answer", "datePublished": "2024-10-31T00:58:12+00:00", "dateModified": "2024-10-31T01:13:53+00:00", "url": "https://www.electro-tech-online.com/posts/1456927/", "text": "I must correct myself. With the re-drawn schematic (and the removal of R3), it is clear that SW1 can go back to being a SPDT switch.\n\nTo paraphrase MacGuyver: A good schematic will always get you where you want to go.\n\nak\n\nOh boy... I feel embarrassed. Thanks again for that. I was looking at the attached schematic from (freestompboxes.org) when I updated mine (above, with the DPDT switch.) An interesting/versatile way of wiring the clipping diodes.", "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.electro-tech-online.com/members/tonyame.322763/", "name": "TonyAme", "url": "https://www.electro-tech-online.com/members/tonyame.322763/" } } ] }, "publisher": { "@type": "Organization", "name": "Electronics Forum (Circuits, Projects and Microcontrollers)", "description": "An electronics forum to talk all about circuits and projects.", "url": "https://www.electro-tech-online.com" } } </script>  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-MMC9PJ9" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>   <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-KLX5R59" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>  <script> $(function(){ var notice = $('.xb-welcome-notice'); if(notice.length){ var cookie = XF.Cookie.get('hide_welcome_notice'); if(!cookie){ XF.Cookie.set('hide_welcome_notice', Date.now()); notice.show(); } else if ((Date.now() - cookie) > 8.64e+7){ XF.Cookie.set('hide_welcome_notice', Date.now()); notice.show(); } else { notice.hide(); } } }); </script> </div> </body> </html>

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A simple distortion effect box could use checking. | Electronics Forum (Circuits, Projects and Microcontrollers)