Topband: help for XE2S

[Herb Schoenbohm]

PACER99 at 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