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@cpr3.navy.mil>
To: "Fern" <crc@cyberlink.bc.ca>; "Carl" <km1h@jeremy.mv.com>; "Dwayne"
<863@telus.net>; <amps@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@contesting.com [mailto:amps-bounces@contesting.com]
On Behalf Of Fern
Sent: Wednesday, March 24, 2010 4:30 PM
To: Carl; Dwayne; amps@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@jeremy.mv.com>
To: "Dwayne" <863@telus.net>; <amps@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
>
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