Hi Andy and group,
I like to heat them for at least an hour before putting any voltage on
the anode since they're old. I prefer several hours. I have tested them
after a nominal ten minute warm up and found them to be fine but I
wouldn't put full HV on them in that time. In any case, I would avoid
4KV and above.
73, Tony W4ZT
> Hi group,
> Just a quick question about the GS35b tube... What is the recommended why to
> burn the tube in prior to first time use??
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