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[TenTec] QRP Amplifiers

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Subject: [TenTec] QRP Amplifiers
From: n4lq@iglou.com (Steve Ellington)
Date: Wed, 22 Apr 1998 20:56:55 -0400
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There has been some talk here about amplifiers for Scouts etc. I have the
T-KIT 1340 here and somewhere, I picked up a CB amplifier made by Palomar
who as you know makes some ham gear too. This is the TX-150 which I assume
means 150 watts out. Probably PEP not RMS!  These little amplifiers
resemble the typical 2 meter brick amplifier, all heatsink with a few
switches on front. They have an RF sensing relay for changeover. All you do
is connect it in series with your feed line and apply 12vdc. I jump from 3
to about 50 watts this way. 

Of course, there are no bandpass or low pass filters in these things but
they do work. In a mobile installation, I would expect the Q of the mobile
antenna would reject harmonics but in the shack you may want to use a tuner
or build a bandpass filter as described in the May issue of QST. 

These are available on up to 650 watts PEP. For more information, check
www.coaxkid.com

Steve Ellington
Amateur Radio Operator N4LQ
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<html><head></head><BODY bgcolor=3D"#FFFFFF"><p><font size=3D2 =
color=3D"#000000" face=3D"Arial">There has been some talk here about =
amplifiers for Scouts etc. I have the T-KIT 1340 here and somewhere, I =
picked up a CB amplifier made by Palomar who as you know makes some ham =
gear too. This is the TX-150 which I assume means 150 watts out. =
Probably PEP not RMS! &nbsp;These little amplifiers resemble the typical =
2 meter brick amplifier, all heatsink with a few switches on front. They =
have an RF sensing relay for changeover. All you do is connect it in =
series with your feed line and apply 12vdc. I jump from 3 to about 50 =
watts this way. <br><br>Of course, there are no bandpass or low pass =
filters in these things but they do work. In a mobile installation, I =
would expect the Q of the mobile antenna would reject harmonics but in =
the shack you may want to use a tuner or build a bandpass filter as =
described in the May issue of QST. <br><br>These are available on up to =
650 watts PEP. For more information, =
check<br>www.coaxkid.com<br><br>Steve Ellington<br>Amateur Radio =
Operator N4LQ</p>
</font></body></html>
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