<div dir="ltr"><div>Viva</div><div> </div><div>Faz sempre jeito, para fritar os miolos ao bairro inteiro ... :-)</div><div> </div><div>73, Luis</div><div>CT1GUJ</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
2013/11/1 João Costa > CT1FBF <span dir="ltr"><<a href="mailto:ct1fbf@gmail.com" target="_blank">ct1fbf@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<h1 align="center"><font color="#ff0000">Power Amplifier<span lang="hr"> Projects </span></font></h1>
<h1 align="center"><font color="#ff0000"><span lang="hr">for </span>Experienced <span lang="hr">VHF/UHF PA </span>Builders</font></h1>
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<p align="center"><font color="#cc0000" size="4"><span style="background-color:rgb(255,255,0)">Important <span lang="hr">notes</span>:</span> </font></p>
<p align="justify"><b><font color="#cc0000">All connections between RF parts, and also connections to ground </font><font color="#ff0000">MUST BE</font><font color="#cc0000"> as short as possible! This is VHF, not HF, in spite that design<span lang="hr">s</span> may looks like HF! Hi! See mechanical layout of PA designs below!</font></b></p>
<h3 align="justify"><b><font color="#cc0000" face="Arial">If input circuit trimmers, need to be at maximum or minimum capacity during adjusting, it is necessary to change the length of the cable between the exciter and the amplifier itself. The optimal length of the cable should be determined experimentally to obtain adjustment with approximately the calculated values of capacitances. This experimentally determined cable should always be used when operating the amplifier. A change of exciter could occasionally require a new length of cable to be determined.</font></b></h3>
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<p align="center"><font color="#ff0000" size="4" face="Arial"><span style="font-weight:700;background-color:rgb(255,255,0)" lang="hr">N</span><span style="font-weight:700;background-color:rgb(255,255,0)">EW</span><span style="font-weight:700;background-color:rgb(255,255,0)" lang="hr"> !</span></font></p>
<h2 align="center"><b><font color="#ff3300" size="6" face="Arial">2<span lang="hr">0 kW VHF Power Amplifier</span></font></b></h2>
<h2 align="center"><b><font face="Arial">1 x GU36B-1</font></b></h2>
<p align="center"><a href="http://www.qsl.net/y/yu1aw/Misc/gu36b-1%2026.jpg" target="_blank"><img border="1" src="http://www.qsl.net/y/yu1aw/Misc/gu36b-1%2026%20ico.png" width="67" height="50"></a> <a href="http://www.qsl.net/y/yu1aw/Misc/gu36b-1%2029.jpg" target="_blank"><img border="1" src="http://www.qsl.net/y/yu1aw/Misc/gu36b-1%2029%20ico.png" width="67" height="50"></a> <a href="http://www.qsl.net/y/yu1aw/Misc/pa02.jpg" target="_blank"><img border="1" src="http://www.qsl.net/y/yu1aw/Misc/pa02%20ico.png" width="64" height="50"></a></p>
<p align="center"><font size="4">initial and final design:</font></p>
<p align="center"><font size="5"><b><a href="http://www.qsl.net/y/yu1aw/Misc/qro%20pa%20gu36b-1.pdf" target="_blank">PDF file</a></b></font></p>
<p align="center"><font><b>Built by</b></font><b><font>: Miška, YU7MS and Pali, YU7PS</font></b></p></div>
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