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Re: [Amps] Henry 2K-4 Failure

To: gudguyham@aol.com
Subject: Re: [Amps] Henry 2K-4 Failure
From: Adrian <vk4tux@gmail.com>
Date: Thu, 19 Mar 2020 09:04:52 +1000
List-post: <mailto:amps@contesting.com>
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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