[Amps] B&W PT-2500A HF Amplifier

[Carl]

I dont know about Viewstar but I believe B&W made 238 if memory serves. It 
would be interesting to get serial # from owners.

One of the Canadians mentioned 5 for the PT-3000.

Carl
KM1H


----- Original Message ----- 
From: "Zeitler, Lane LT, FST-1" <zeitlel at cpr3.navy.mil>
To: "Fern" <crc at cyberlink.bc.ca>; "Carl" <km1h at jeremy.mv.com>; "Dwayne" 
<863 at telus.net>; <amps at contesting.com>
Sent: Wednesday, March 24, 2010 11:31 PM
Subject: RE: [Amps] B&W PT-2500A HF Amplifier


How many 2500A's were made by both companies? How about the 3000? I have
never even seen a 3000.

Lane
Ku7i

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com]
On Behalf Of Fern
Sent: Wednesday, March 24, 2010 4:30 PM
To: Carl; Dwayne; amps at contesting.com
Subject: Re: [Amps] B&W PT-2500A HF Amplifier

Well Carl, that is strange indeed as I never had any of those problems
that you are talking about with my PT-3000A which is very similar to the
PT-2500A except for the 8877 and factory installed qsk. Also, the
Hammond power supply had a much better plate transformer.  I don't know
what they did wrong in the US when B&W acquired it but it sure wasn't
around very long after that.  Fern

----- Original Message ----- 
From: "Carl" <km1h at jeremy.mv.com>
To: "Dwayne" <863 at telus.net>; <amps at contesting.com>
Sent: Wednesday, March 24, 2010 5:12 PM
Subject: Re: [Amps] B&W PT-2500A HF Amplifier


> Ummm, I never said that B&W used a different switch or transformer.
AFIK,
> they could have used a US built transformer but I never asked, even
when I
> was at the factory.
>
> As far as the Pi-L, I beg to differ as it was a severe problem that
went
> thru 2 revisions in the US before it was stable on all bands and under
all
> possible conditions such as all out contesting for 48 hours non stop.
A new
> parasitic suppressor design was also implemented.
>
> If you read the thread you will see that I was comparing the final
version
> B&W amp to other 2 x 3-500 amps on the market and concluded it was the
best
> of the breed. Viewstar deserves a good part of the credit.
>
> Carl
> KM1H
>