https://collinsmuseum.org/index.php?action=history&feed=atom&title=18A 2026-04-08T15:47:59Z Revision history for this page on the wiki MediaWiki 1.34.1 https://collinsmuseum.org/index.php?title=18A&diff=352&oldid=prev 2020-04-14T21:30:10Z

<p></p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 21:30, 14 April 2020</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The 18A is a three-channel HF AM Transmitter supported by a 411 external power supply.  For remote operation, a 451 Engine Generator (110VAC) was available.&lt;br /&gt;</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The 18A is a three-channel HF AM Transmitter supported by a 411 external power supply.  For remote operation, a 451 Engine Generator (110VAC) was available.&lt;br /&gt;</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The model <del class="diffchange diffchange-inline">seen </del>below, complete with microphone, was constructed specifically for the Columbia Broadcasting System (CBS).&lt;br /&gt;</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The model <ins class="diffchange diffchange-inline">shown </ins>below, complete with <ins class="diffchange diffchange-inline">a Brush Crystal </ins>microphone, was constructed specifically for the Columbia Broadcasting System (CBS).&lt;br /&gt;</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:18A Front.jpg|center|800px|18A, Front View]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:18A Front.jpg|center|800px|18A, Front View]]</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;center&gt;18A Transmitter, Front view&lt;/center&gt;</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;center&gt;18A Transmitter, Front view&lt;/center&gt;</div></td></tr> </table>

Larry https://collinsmuseum.org/index.php?title=18A&diff=341&oldid=prev 2020-04-14T18:47:04Z

<p>Created page with &quot;The 18A is a three-channel HF AM Transmitter supported by a 411 external power supply. For remote operation, a 451 Engine Generator (110VAC) was available.&lt;br /&gt; The model se...&quot;</p> <p><b>New page</b></p><div>The 18A is a three-channel HF AM Transmitter supported by a 411 external power supply. For remote operation, a 451 Engine Generator (110VAC) was available.&lt;br /&gt;<br /> The model seen below, complete with microphone, was constructed specifically for the Columbia Broadcasting System (CBS).&lt;br /&gt;<br /> [[File:18A Front.jpg|center|800px|18A, Front View]]<br /> &lt;center&gt;18A Transmitter, Front view&lt;/center&gt;<br /> [[File: 18A Top.jpg|800px|center|18A, Top View]]<br /> &lt;center&gt;18A Transmitter, Top view&lt;/center&gt;<br /> [[File: 18A Bottom.jpg|800px|center|18A, Bottom View]]<br /> &lt;center&gt;18A Transmitter, Bottom view&lt;/center&gt;<br /> == Circa ==<br /> 1936</div>

Larry