Unless you wanted an AC/DC PS industrial Step Up/Down transformers were
very cheap in surplus shops.
The one here Ive used for all sorts of projects is 110/330 or 220/660 at
about 110# with just thin sheet metal end bells. Lots of this type of stuff
were scrapped when old mill and other industrial buildings were renovated or
razed in MA and NH. I bought this one around 67 when I was still at National
Radio. Im guesstimating at least 5KVA CCS.
No insulation problems even with a quadrupler PS and voltage sag is very
very low at 1500W RF.
I picked up 3 120/240 or 240/480 more modern ones at a similar place about
30 years ago and use them to feed 480V to the garage and trailers out back
so I didnt have to go above 10-3 outdoor UV rated cable to run tools,
compresors, and welders.
Carl
----- Original Message -----
From: <donroden@hiwaay.net>
To: <amps@contesting.com>
Sent: Wednesday, December 06, 2017 10:04 AM
Subject: Re: [Amps] Multi tube amp
Wasn't that something like 500 volts @ 2 amps ?
Don W4DNR
Quoting Roy Koeppe <royanjoy@ncn.net>:
“Seems to me there was also one in strays that use something like a
dozen 1625’s on parallel...(etc.)”
Yes that was my amp – think it had 20 of them with a broad banded input
and output. I can’t locate the issue so far! Had a photo of it in
Strays. I used that amp for several years.
73, Roy K6XK Iowa
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