Ok on that, a 500v megger check would probably show it better.
On 19/3/20 8:52 am, gudguyham@aol.com wrote:
99% of the time a short won’t show with a meter in a cold tube. On
rare cases yes.
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On Wednesday, March 18, 2020, Adrian <vk4tux@gmail.com> wrote:
Surely a meter, ohm checking the pin resistance between the
cathode and
grid will identify the problem tube ?
Unless the short only occurs when hot.
Adrian Fewster
vk4tux
On 19/3/20 6:45 am, Mark - N5OT wrote:
> Thanks ALL!
>
> I'll swap in a different set of tubes to confirm or rule out
that it's
> one of the tubes. Then if it is a tube, I'll do them one at
time to
> figure out which tube it is.
>
> Thanks for all the great answers. A bunch of "it's probably a
tube"
> then a couple outlier answers for if it turns out to not be a
tube :-)
>
> 73 - Mark N5OT
>
>
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