I've had several of these PT-2500A hf amps without ever having any
issues......never any arcing, etc.
I still have a PT-3000A (only five of those produced) which was similar (same
cabinet) except that it sported the 8877 ceramic tube and also had factory QSK
with vacuum relays. The only issue that I had with it was a failed ceramic
padder capacitor that affected the lower bands (40 and 80 is my recollection).
73 from Fern VE7GZ
----- Original Message -----
From: "Carl" <km1h@jeremy.mv.com>
To: "RMorris" <robrk@nidhog.net>; "bob" <n612dw@gmail.com>
Cc: <amps@contesting.com>
Sent: Wednesday, April 02, 2014 2:30 PM
Subject: Re: [Amps] B&W PT-2500A on 10m?
>A brain reset will reveal it was designed by Viewstar plus Fred Hammond,
> financed by Hammond, was a sales dud due to few wanted to deal with
> crossborder hassles, arced badly in the tank circuit, sold to B&W for the US
> market and modified to stabilize.
>
> Overpriced and still didnt sell well, a bit under 250 in the US.
>
> I was a B&W US distributor and also was brought in to help with the
> redesign. Also used a pair of unsold rebuilt Viewstars to win 2 ARRL DX
> contests with KQ2M as the op as the shakedown test. Never a hiccup.
>
> Carl
> KM1H
>
>
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