Thanks to all of you who sent emails giving me some pointers on the value of
the 4-1000A I listed for sale a couple of days ago. I'll incorporate all of
those comments when I list the tube for sale.
As sometimes happens, I've come up with another question on this general
subject to ask the group - is there a reasonable way I can test the 4-1000A
without plugging it into a full blown RF amplifier?
I do have the power supply and the rf decks that came with the tube. The rf
decks, frankly, scare the living daylights out of me - fully open construction,
high voltage (also all open construction, I might add), etc. However I might be
able to, with a great deal of care, get the beast up and running - at least far
enough to look at idling current. The PS does have variacs on (I think) both
the HV and the filament supplies which would imply that I can sneak up on
operation. Can I tell enough without applying RF? Certainly I can verify that
the filaments light. I suspect that (depending on grid bias etc) there is some
amount of idling plate current I should draw. I suspect I might be able to
detect if it is gassy, etc.
Anyways I would certainly appreciate any thoughts anyone might have.
Thanks again for the help up to this point.
73
Bob Groh, WA2CKY
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