Or you could try a new tube ......
-------- Original message --------From: Adrian <vk4tux@gmail.com> Date: 3/19/20
18:17 (GMT-05:00) To: Jim Thomson <jim.thom@telus.net>, amps@contesting.com
Subject: Re: [Amps] Henry 2K-4 Failure Thanks Jim, you can't beat words from
those experienced.I guess a cathode test plug could be made to substitute one
tube plugging intothe socket .A dead tube could have its base made up for this,
with resistor added tocathode connections equalling the hot value.Then
interchange tubes on the remaining socket to compare.vk4tuxOn 20/3/20 3:32 am,
Jim Thomson wrote:>> Grid to cathode short & ?stayed failed? means you just
need an>> ohmmeter. No need to swap tubes, etc.>>>> Gerald, VE1DT>>> ## Nope.
The grid to cathode short only happens with tube fil lit..... not
when cold.> When cold, both a HI pot tester.... and also a megger
wont work either.>> Jim VE7RF>
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