Those typically go in the $400-500 range since they have limited appeal due
to size and weight. If you are lucky enough to find a buyer within driving
distance you can probably get a bit more.
Ive had many floor model Henrys offered at low prices and have to turn them
down as Im not into holding on to inventory hoping to find a buyer way down
the road.
Carl
KM1H
----- Original Message -----
From: "Gene" <jbigham2@kc.rr.com>
To: <amps@contesting.com>
Sent: Thursday, December 31, 2009 10:39 AM
Subject: [Amps] What is Henry 2K Classic X Worth?
>I am wondering what a floor model Henry 2K Classic X might be worth at this
> time? Serial 55375, near mint condition. New Roller inductor, new plate
> tuning caps. Only Modification I added a ceramic formed rheostat to the
> input of the filament transformer to lower the filament voltage as it
> measured on the high end of specifications. This is an 80 through 10
> meter
> model with two carbon plate 3-500z that are fresh and two more similar in
> used in box but with full output to go with it. Under CW high power with
> outputs above 1KW the plates barely glow orange. New Band selector as
> well. This especially heavy duty amplifier dwarfs all amps on the market
> and weights enough that it takes two people to move it. As you know it is
> a
> choke input high voltage power supply. I have used it little in the past
> few years as I have been working primarily psk digital modes, who needs an
> amp for that?
>
> In addition to the low use on the current tubes, an extra set of full
> output
> carbon plate set of tubes comes along with it, there are doorknob caps all
> rated at 7.5KV for the plate tuning in the values of 3 qty 25pf; 2 qty
> 75pf;
> and 2 qty 100pf. These were quite expensive from Henry. Also an
> additional bandswitch assembly acquired when learned that Henry was
> discontinuing tube type HF amps. There is also a Guardian Electric plug
> in
> type 12 v.d.c. relay for switching. Full manual as well.
>
> Also have a kit for triode amplifier from G3SEK that was never installed,
> thought it might be a great improvement to the unit, but turns out the
> original design by Henry is adequate and superior in terms of protection,
> bias, and etc. So never took the time to install it. Have full
> documentation on the kit. Also have a line isolator for use with the
> input
> or output per your discretion. I live in a suburban area with neighbors
> right on top of me, most have cable TV, there has been no reports of
> interference from my own home systems, computers, sound, television; nor
> from neighbors with one exception and that may be related to antenna not
> amplifier, 15 meters seems to cause slight interference with one neighbor
> TV
> but not my own.
>
> Amp is wired for 240 volts, I adapted a patch cord to plug it into the
> dryer
> receptacle which is near the amp and easily accessible there is no way I
> would run it on 120, but it is possible to do so.
>
> I have typically run this amp in the CW mode which lowers the plate
> voltage
> and gain of the tubes, it will yield 1200 to 1500 watts out with
> approximately 100 watt input. SSB mode puts 4,000 volts to the plates,
> while CW mode puts 3500 volts there, since it is choke input high voltage
> supply there is little sag I these voltages. Grid current is well within
> specs. Power output is consistent across all bands 80 through 10 meters.
> I
> have managed to use the 40 meter setting to allow for amplification on 30
> meters with less power but good gain to within legal limit, inhibited by
> non
> resonance of the input tuned circuit. The output circuit is PiL with
> exceptional purity of output signal.
>
> I have owned this particular amp for almost 15 years and am second owner.
> It was purchased from Associated Radio in Overland Park, KS.
>
> So it begs the original question, what is the Blue Book value for private
> seller for this amp. I love it, but do not think I need it any longer.
>
> Also, I have a Palstar AT4K to accompany it if interested. This cost me
> approximately $1.2K and is the most heavy duty tuner I have owned.
> Everything else used prior has arced, burned contacts, etc. behind the
> Henry
> 2K Classic X. The Palstar is a truly output rated tuner that covers a
> broad
> range of impedances. It is only 3 years old and mint. I wonder what it
> would be worth as well?
>
> Ok, Happy New Year 2010 to all.
>
> KB0GU
>
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