PACER99@aol.com wrote:
> hi guys,
>
> i have just finished repair of a TL-922 that belongs to Marco, XE2S. he
> needs two new tubes type 3-500Z.
>
> anyone have spares either used good or new that they can sell for a
> reasonable price?
>
> 73,
> larry
> n7dd
> _______________________________________________
>
>
Larry,
he can also try 4-400A's or 4-400C's with the thoriated tungsten
filament so he can turn PA voltage on at the same time. Or put in a time
delay relay to allow filaments to get warm before plate voltage is applied.
This is what I used for years as broadcast pulls from 1 KW AM
transmitters were plentiful and cheap for 25 to 30 dollars. They still
are less costly than the 3-500 series and the Chinese version is not a
got choice. Svetlana is fine for either and several houses still have
hundreds of 4-400a/c either Penta or Eimacs. But the best bet is on an
is Amperex in either tube and Penta on the 4-400A.IMHO.
Herb Schoenbohm, KV4FZ
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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