[Amps] Heathkit HA10 linear

[Mike(W5UC) & Kathy(K5MWH)]

Good Morning Tom"

I am running a HA-10 and driving it with a FT-1000MP.  I run 2KV on the 
plates.  Output varies from band to band, but on average it runs in the 700 
watt range.  I do nothing special in terms of interfacing the amp to the 
exciter.  The tuner in the FT-1000MP seems to do a good job of matching the 
input.  I have considered retrofitting it with Gi-7b's, but that's as far as 
I got with the project.  I have a hard time believing that  four 811A's will 
run that kind of output(or input ) without going into full meltdown given 
that the total plate dissipation for four tubes would be 260 watts. 
Something doesn't sound right here.

73.
Mike, W5UC
http://members.cox.net/w5uc

----- Original Message ----- 
From: "tom and jeanne Bates" <tcbates at starband.net>
To: <amps at contesting.com>
Sent: Friday, August 04, 2006 5:57 PM
Subject: [Amps] Heathkit HA10 linear


> Hello All
> Is there anyone out there that is using a Heathkit HA 10 linear with a 
> solid
> state transceiver?  I have one that has been upgraded to a 3000 volt
> transformer and uses 2B28 rectifier tubes.It will cruise at 2000 plus 
> watts
> according to the previous owner although he used it with a Heathkit 
> exciter
> and a Drake 2B receiver and I want to use it with a Yeasu 990.
> Help someone please!
> Tom    N4RGZ   Clanton Alabama
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