[Amps] Henry 2K-4 Failure
Adrian
vk4tux at gmail.com
Wed Mar 18 19:04:52 EDT 2020
Ok on that, a 500v megger check would probably show it better.
On 19/3/20 8:52 am, gudguyham at 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 at 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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