October 20th 08, 12:26 AM
posted to rec.radio.amateur.equipment
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First recorded activity by RadioBanter: Jun 2008
Posts: 1,183
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TRW Transistors
prc74b wrote:
'Dave[_18_ Wrote:
;651539']prc74b wrote:-
I have an old Hallicrafters Transceiver that uses TRW PT5651 RF
transistors as the Driver and P/P finals. I can not find data
sheets, specs, or any information on these anywhere. Its like they
didn't exist. I am
looking for any type of replacement. I can't even tell if they are
Pnp
or NPN. They are single stud mount, with 4 solder tabs. The curcuit
is broadband, and the B+ is 12-14 volts.
Thanks for any help.
Joe Munson
WA4VAG
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Does the transceiver have a model number?
No marking of any kind on the unit. But I believe to be a
Hallicrafters TR-9.
That's a bad-ass looking radio.
http://www.qsl.net/la5ki/big/tr9.jpg
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