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Re: [IRCA] 2 NEAT Transmitter Tubes today @ London, ONTARIO Hamfest.....GE GL-892R and Western Electric 357-A........
- Subject: Re: [IRCA] 2 NEAT Transmitter Tubes today @ London, ONTARIO Hamfest.....GE GL-892R and Western Electric 357-A........
- From: "Craig Healy" <bubba@xxxxxxxxxxxxxxxxxxxx>
- Date: Sun, 26 Sep 2010 15:47:35 -0400
I attended my Hometown Local Hamfest in London, ONTARIO today and picked
up a pair of Great Looking RF TRANSMITTER TUBES......
General Electric GL-892-R 5 KW Forced Air Cooled RF Amplifier and Class B
Modulator (Weighs about 25 Pounds at least!!) Used in Commercial AM
Broadcast Transmitter.
The 892-R was used in a pre-WWII RCA 5DX 5kw AM transmitter. Also a pair of
891-R tubes. Probably used in other transmitters as well. I think they
were the first higher power air-cooled tubes. Previous versions of the same
ones were water cooled. The big glass part and the side grid connection is
a very cool sight.
Around 1974 WPRO-630 in Providence, RI updated their transmitters and got
rid of the RCA 5-DX they had since 1939. I removed it and had it stored for
a few years. Finally sold most of it and junked the rest. I do have a few
parts left for it in my basement. Mostly variable capacitors and some
coils.
Craig Healy
Providence, RI
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