metal tubes

On Thu, 25 Sep 2003 21:54:31 +0100, Allan Adler wrote:

Where might one find more information about them, hopefully including
designs, shop drawings, etc.?

Ignorantly,
Allan Adler
ara@zurich.ai.mit.edu
The plants that made them are probably buried under shopping malls by now
:-(

RCA were a big player, ISTR Sylvania, too. The main European producers
were STC (Part of ITT), M-O Valve Company (AKA English Electric Valves, or
EEV), AEG-Telefunken. Valvo, in Saarbrucken may have been involved, too,
but I'm not sure there.

Somebody at the BBC's engineering department (or what's left of it) might
give you a steer. Their 198KHz Droitwich transmitter is still running, and
that may still be tubes. It's damn big.

Do a Google for <"high power transmitting" tubes valves>

There may be obscure companies manufacturing for the niche market that's
left over. If it came to replacing ten grand's worth of final tube or half
a mil for a new transmitter, I know what I'd do :)

--
Then there's duct tape ...
(Garrison Keillor)
nofr@sbhevre.pbzchyvax.pb.hx
 
Fred Abse wrote:
On Thu, 25 Sep 2003 21:54:31 +0100, Allan Adler wrote:

Where might one find more information about them, hopefully including
designs, shop drawings, etc.?

Ignorantly,
Allan Adler
ara@zurich.ai.mit.edu

The plants that made them are probably buried under shopping malls by now
:-(

RCA were a big player, ISTR Sylvania, too. The main European producers
were STC (Part of ITT), M-O Valve Company (AKA English Electric Valves, or
EEV), AEG-Telefunken. Valvo, in Saarbrucken may have been involved, too,
but I'm not sure there.

Somebody at the BBC's engineering department (or what's left of it) might
give you a steer. Their 198KHz Droitwich transmitter is still running, and
that may still be tubes. It's damn big.

Do a Google for <"high power transmitting" tubes valves

There may be obscure companies manufacturing for the niche market that's
left over. If it came to replacing ten grand's worth of final tube or half
a mil for a new transmitter, I know what I'd do :)

--
Then there's duct tape ...
(Garrison Keillor)
nofr@sbhevre.pbzchyvax.pb.hx
There are companies who rebuild transmitter tubes, and Richardson
Electronics ( http://www.rell.com/ ) still sells industrial and
broadcast transmitter tubes.


--


Michael A. Terrell
Central Florida
 

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