CINXE.COM

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head>  <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-5QGVBQRC');</script>  <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date());gtag('config', 'UA-128995055-1'); </script><meta name="description" content="early television"> <link rel="shortcut icon" href="images/favicon.ico"/> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Tel-Instrument 2401 Monitor </title> <link href="css/oneColElsLtHdrFooter.css" rel="stylesheet" type="text/css" /> <style> body { background-image: url('images/blue_wallpaper.jpg'); } </style> </head> <body> <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-5QGVBQRC" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>  <div id="container"> <div id="header"> <table height="120" width="100%" border="0"> <tr> <td width="25%"><a href="index.html"><img src="images/etm_logo_new.jpg" alt="Early Television" width="255" height="100" border="0" /></a></td> <td width="65%"> </td> <td width="10%"></a></td> </tr> </table> <div class="navbar"> <div class="dropdown"> <button class="dropbtn">Mechanical TV <i class="fa fa-caret-down"></i></button> <div class="dropdown-content"> <a href="mechanical.html">Mechanical TV History</a> <a href="mechanical_tv.html">How it Works</a> <a href="mechanical_sets.html">Mechanical Sets at the Museum</a> <a href="mechanical_gallery.html">Gallery</a> <a href="mechanical_database.html">Database Summary</a> <a href="mechanical_broadcasting.html">Broadcasting</a> <a href="mechanical_ads.html">Advertising</a> <a href="mechanical_articles.html">Articles</a> <a href="restoration.html">Restoration</a> <a href="dupouy.html">Roger DuPouy's Site</a> <a href="peter_yanczer.html">Peter Yanczer's Site</a> <a href="poetschke_site.html">Gerolf Poetschke's Site</a> <a href="Etzold/tv-e.html">Eckhard Etzold's Site</a> </div> </div> <div class="dropdown"> <button class="dropbtn">Early Electronic TV <i class="fa fa-caret-down"></i></button> <div class="dropdown-content"> <a href="prewar.html">Early Electronic Television History</a> <a href="prewar_american.html">American Sets at the Museum</a> <a href="prewar_british_sets.html">British Sets at the Museum</a> <a href="prewar_gallery.html">Gallery</a> <a href="prewar_database.html">Database Summary</a> <a href="prewar_crts.html">CRTs</a> <a href="prewar_other_eqpt.html">Other Equipment</a> <a href="prewar_ads.html">Advertising</a> <a href="prewar_articles.html">Articles</a> <a href="restoration.html">Restoration</a> <a href="prewar_broadcasting.html">Broadcasting</a> <a href="tv_schematic_diagrams_prewar.html">Technical Information</a> <a href="poetschke_site.html">Gerolf Poetschke's Site</a> <a href="Etzold/tv-e.html">Eckhard Etzold's Site</a> </div> </div> <div class="dropdown"> <button class="dropbtn">Postwar TV <i class="fa fa-caret-down"></i></button> <div class="dropdown-content"> <a href="postwar_american.html">Postwar American TV History</a> <a href="postwar_american_sets.html">Postwar American Sets at the Museum</a> <a href="postwar_british.html">British/Europen TV History</a> <a href="postwar_british_sets.html">British/Europen Sets at the Museum </a> <a href="postwar_rest_of_world.html"> TV in the Rest of the World</a> <a href="postwar_gallery.html"> Gallery of Unusual Sets</a> <a href="postwar_broadcasting.html">Broadcasting</a> <a href="postwar_crts.html">CRTs</a> <a href="postwar_other_eqpt.html">Other Equipment</a> <a href="postwar_advertising_menu.html">Advertising</a> <a href="postwar_magazine_articles.html">Articles</a> <a href="restoration.html">Restoration</a> <a href="postwar_tv_schematic_diagrams.html">Technical Information</a> <a href="Etzold/tv-e.html">Eckhard Etzold's Site</a> </div> </div> <div class="dropdown"> <button class="dropbtn">Early Color TV <i class="fa fa-caret-down"></i></button> <div class="dropdown-content"> <a href="color.html">Early Color TV History</a> <a href="color_sets.html">Sets at the Museum</a> <a href="color_gallery.html">Gallery</a> <a href="color_database.html">Database Summary</a> <a href="color_broadcasting.html">Broadcasting</a> <a href="tv_schematic_diagrams_color.html">Technical Information</a> <a href="color_crts.html">CRTs</a> <a href="color_ads.html">Advertising</a> <a href="color_articles.html">Articles</a> <a href="restoration.html">Restoration</a> <a href="Deksnis/home_page.html">Pete Deksnis's Site</a> <a href="ed_reitan.html">Ed Reitan's Color Television History</a> <a href="Etzold/tv-e.html">Eckhard Etzold's Site</a> </div> </div> <div class="dropdown"> <button class="dropbtn">The Museum <i class="fa fa-caret-down"></i></button> <div class="dropdown-content"> <a href="foundation.html">The Early Television Foundation</a> <a href="museum.html">About the Museum</a> <a href="museum_maps.html">Directions to the Museum</a> <a href="museum_articles.html">Articles about the Museum</a> <a href="friends.html">Support the Museum</a> <a href="mailing_list.html">Join our Email List</a> <a href="newsletter.html">Our Newsletter - "What's New in Old TVs"</a> <a href="eqpt_donations.html">Equipment Donations</a> <a href="member_recognition.html">Museum Members and Supporters</a> <a href="members_only.html">Members Only</a> <a href="monthly_online_meeting.html">Monthly Online Meetings</a> <a href="conventions.html">Annual Convention</a> <a href="swapmeet.html">Swapmeets</a> </div> </div> <div class="dropdown"> <button class="dropbtn">Other Information <i class="fa fa-caret-down"></i></button> <div class="dropdown-content"> <a href="whatsnew.html">What's New on the Site</a> <a href="classifieds.html">Classifieds</a> <a href="parts_available.html">Parts for Sale</a> <a href="resources_menu.html">Resources</a> <a href="search.html">Search the Site</a> </div> </div> <div class="dropdown"> <button class="dropbtn">Contact Us <i class="fa fa-caret-down"></i></button> <div class="dropdown-content"> <a href="contact_us.html">Contact Us</a> <a href="https://www.facebook.com/profile.php?id=61556952494582">Facebook</a> <a href="youtube_playlist.html">YouTube Channel</a> </div> </div> </div>  <div id="mainContent"> <table width="100%" border="0" bgcolor="#ffffff" align="right" cellspacing="0" cellpadding="0" > <tr> <td width="1%" valign="top" bgcolor="#ffffff"> </td> <td width="98%" valign="top" bgcolor="#ffffff" ><div align="center"> <p class="hidden">xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx</p> <p class="Comic">Early Color Television</p> <h3 >Tel-Instrument 2401 Monitor </h3> <p><img src="images/telinstrument_monitor-1.jpg" width="700" height="871" alt="Early Television" /></p> <p class="Credit">Courtesy of Tom Carlson</p> <p><a href="pdf/tel-instruments_2401_monitor.pdf">More pictures</a></p></div><p> </p> </td> <td width="1%" valign="top" bgcolor="#ffffff"> </td> </tr> </table> <div align="center"><p> </p><span id="siteseal"> <script async type="text/javascript" src="https://seal.godaddy.com/getSeal?sealID=VeYeABh1hQddraUJaqo539RWqNDVw967aznWInYLY8X3lxM2aWedVGKJ9BN8"></script> </span></div> </div>  <br class="clearfloat" /> <div id="footer"> <table width="101%" border="0" cellspacing="0" cellpadding="0"> <tr> <td > </td> </tr> </table> <table width="100%" border="0" bgcolor="#a1b1f1"> <tr> <td width="25%"><div align="center" >Early Television Museum</div></td> <td><div align="center">5396 Franklin St., Hilliard, OH 43026</div></td> <td><div align="center">(614) 771-0510</div></td> <td><div align="center"><a href="mailto:info@earlytelevision.org">info@earlytelevision.org</a></div></td> </tr> </table>  </div>  </div> </body> <script>'undefined'=== typeof _trfq || (window._trfq = []);'undefined'=== typeof _trfd && (window._trfd=[]),_trfd.push({'tccl.baseHost':'secureserver.net'},{'ap':'cpsh-oh'},{'server':'p3plzcpnl505096'},{'dcenter':'p3'},{'cp_id':'2285050'},{'cp_cl':'8'}) // Monitoring performance to make your website faster. If you want to opt-out, please contact web hosting support.</script><script src='https://img1.wsimg.com/traffic-assets/js/tccl.min.js'></script></html>