[Amps] 3-500Zs inverted

[Pete Smith N4ZR]

Thnks for all the serious replies, and I didn't mind the horsing 
around.  Fortunately, the very first quoted the tube data sheet, which I 
did not have, and hadn't thought to Google, because I did not know the 
info would be there.


73, Pete N4ZR
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On 4/3/2014 9:19 AM, Pete Smith N4ZR wrote:
> I need to trouble-shoot my QSK system, which is built into my SB-220.  
> Will it do any harm to apply filament and plate voltages, but no 
> drive,  to the 3-500Zs in the inverted position for a few minutes at a 
> time?
>