Ian White GM3SEK wrote:
> In glass/metal tubes that operate
> with a very hot anode, the getter is on the anode itself. In
> ceramic/metal tubes that operate with a relatively cool anode, the
> getter is usually on the cathode because that is the hottest place.
Which seems to imply that when putting a tube in service that has been
stored for some time, the way to activate the getter depends on the tube
type. Filament voltage alone should work for a ceramic tube while a
3-500Z or similar should have enough plate current flowing to heat the
anode. Is this correct?
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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