[Amps] Henry 2K-4 Failure

[Adrian]

Yes I earlier divided 10 volts by 15 amps to get 0.666 series resistance 
divided by 2  (tubes)

1.5 ft 16 gauge nichrome coiled is a inexpensive option.

On 21/3/20 12:16 am, Jim Thomson wrote:
> ## 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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>
>