[NLRS] VHF amps for sale at Buffalo hamfest

Dennis Clemenson dclemenson at gondtc.com
Tue Mar 25 18:39:29 EDT 2014


Hello VHFers,

I am going to the Midwinter Madness hamfest, leaving Devils Lake Friday
morning.  I have some good working amplifiers here that I no longer use
after upgrading to higher power units.  If you would like to purchase or
seriously look at one these, please let me know by Thursday night.  If I
don't hear any interest, they will probably stay home until Dayton.

1.	Henry 2006A six meter amp.  Beautiful condition.  3CX800A7 tube is
strong.  I usually ran it 700 or 800 watts, it will go more.  TR relay
switching included for a six meter transceiver.  With manual. $1300

2.	Commander II two meter amp.  Fair to good cosmetics, excellent
operating condition.  3CX800A7 or 3CPX800A7 tube, I'm not sure which but I
ran it a lot at 700 watts JT65 EME with an extra booster fan on top.  It
will go for more power on CW and SSB.  This is the early model, black front
panel with red lettering.  TR relay switching included for a two meter
transceiver.  With manual.  $1000.

3.	FAA transmitter with 4CX250B tube driven by a 8616(?) driver tube.
It is set up on 222 MHz as an amplifier only, exciter section removed.
Model FA-8712, this one was made by Collins and works fine.  I used up until
a few months ago.  A few watts input gives 350 or more watts output.  Very
heavy.  With limited documentation. No TR relays.  $300 and I'll throw in a
spare 4CX250B.

4.	1296 water cooled amplifier as seen in the ARRL handbook as a N6CA
quarter kilowatt amplifier for many years.  It uses a 2C39 tube and I ran it
at 100 to 150 watts output with 10 watts drive or less.  The cavity was
built by a station in Grants Pass, OR, who made a lot of these back in the
late 80s.  This will include the amplifier, mounted on a rack panel along
with the bias, filament, and control circuitry with plate current meter.
I'll also include a water tank (4" PVC pipe), water pump, cooling lines, and
a spare tube with a water jacket installed.  I'd like to keep the HV power
supply that I built in a separate chassis with a 8-3/4" rack panel front.
$250 for the setup without HV power supply.  You need to add the HV power
supply, sequencer, TR relays, and distilled water.  I have a second
identical cavity that I will sell for $50 if the first one is sold.  That
cavity had a finger stock issue on the filament connection when I first used
it and I bought another cavity to get back on the air quickly with plans of
running both cavities but that never happened.  If you really want the HV
power supply (115VAC input, large variac on the panel, mil surplus
transformer, non PCB oil filled capacitor), up to 1600 VDC output, I'd sell
it with the amplifier setup for another $50 but only to someone who buys the
amplifier.  I have some notes, the documentation was in the ARRL handbook
many times.

Please e-mail me if you have interest in any of these amplifiers.  I don't
know if I'll be able to attend the Aurora conference this year or not.  I'm
trying to arrange my schedule but uncertain right now.

73,
Dennis NT0V  EN08oc



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