160 & 80 meter (4)572B amp $325.00

[J. Douglas Hensley]

I think the Bandit 2000A by Hunter ran 3-400's at least the last few that
I have seen do.  Sounds like a complete changeover.

On Fri, 11 Feb 2000 19:25:44 -0800 "Lane Zeitler" <Ku7i at worldnet.att.net>
writes:
>This used to be a stock Hunter Bandit 2000A hf amp. Runs four 572Bs.
>Power
>out is 1100 watts on 160 and 80. Modified to work only on 160 and 80
>meters.
> This is a tinkerer's amp. I have not installed the vacuum relay
>(Jennings
> and included) to allow automatic switching btwn 160 and 80. This
>will
>switch
> in the extra Tune Cap padders for 160. The way it is now you need to
>go in
> and manually change a strap for either 160 or 80 meters. The
>bandswitch is
> modified to select 160 low or 160 high and 80 low and 80 high. The
>plate
> idling current is abt 300mA so you will need to go in and fix the
>zero
> signal anode current and get it back down to abt 100mA at idle.
>Probably
>the
> resistor blew out. I have been using this amp daily on 160. I ran an
> additional muffin fan on the top of the unit so if I was not going to
>be
> xmitting for a few minutes I would turn the amp off but the tubes
>would be
> kept cool with the external muffin fan. After a few minutes of
>drawing
>300ma
> the tubes do show color. This helped the tubes. 100 watts in gives
>1100
>out.
> Same for 80. Plate voltage is 2500 at idle and drops to 2200 under
>load at
>1
> amp of plate current. Wired for 240 but can swap it back to 120. The
>high
> voltage has a total of three taps. 2500, 2100, 1800 vdc (approximate)
>so
>you
> could drop in some 811As if you wanted to. I have two manuals for
>this with
> complete parts list and schematics.
> Comes with four US made 572Bs which are a mix of brands, some Cetron,
>some
>??. No chinese tubes, all American. This is a neat amp. I am also
>including
>a spare bandswitch identical to the original which has six positions
>so if
>you are feeling froggy you could turn it into a six band amp covering
>160 to
>10 meters or a REAL low band special covering 160H, 160L, 80H, 80L,
>40H, and
>40L.
>
>Cosmetics are fair. Front panel not trashed but this thing is 30+
>years old.
>I will pack it very well and ship the tubes seperately double boxed.
>
> Price for the amp with tubes is $325.00 and it you do not need the
>tubes I
> will sell it for $225.00. I will not sell the tubes by themselves,
>even
>after the amp is sold since I have other amps that use these tubes.
>
> BTW I used really nice 5kv transmit type doorknobs for the tune and
>load
>padders which are NOT cheap.
>
> Buyer covers UPS charges on 50 pounds from San Diego 92139.
>
> Lane
>Ku7i
>San Diego
>
>
>