[Amps] Getters

[John Lyles]

Good enough. I did have a 3-500Z switch tube in my 314R1 broadcast transmitter go bright yellow on the plate when the clamp diode was shorted across it. The plate overload saved it but for a moment it was quite bright. There was blue fluorescence on the glass. 
I suspect that the plate outgassed a little, as it was 'processed' higher temperature in situ than Eimac likely did. It survived this test OK!
K5PRO

> But this doesnt apply to the ham type tubes in service today. A 3-500 doesnt 
> outgas at a red color and I havent found any decrease in a hi-pot even after 
> an extended bright orange.
> 
> Carl
> KM1H