[Amps] Henry 2K-4 Failure
Jim Thomson
jim.thom at telus.net
Fri Mar 20 10:16:49 EDT 2020
## would require a .333 ohm at 75+ watt resistor.
Jim VE7RF
-----Original Message-----
From: Adrian
Sent: Thursday, March 19, 2020 3:17 PM
To: Jim Thomson ; amps at 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 into
the socket .A dead tube could have its base made up for this, with
resistor added to
cathode connections equalling the hot value.
Then interchange tubes on the remaining socket to compare.
vk4tux
On 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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