[Amps] Henry 2K-4 Failure

[Mark - N5OT]

Indeed, I was pretty sure this was a common set of symptoms.  Two 3-500z 
tubes here are about as common as it gets.

I was pleased that I'd recalled the pinout of this tube from 4 or 5 
decades of memory, and "ohming" it took about 5 seconds as soon as I got 
the tubes out sitting on the desk next to each other.

Made me happy.  Also made me happy that I had spares just dying to be 
put into service.

THANK YOU EVERYONE for such a great and fast response.  See you on the air!

73 - Mark N5OT


On 3/20/2020 7:43 AM, john at kk9a.com wrote:
> What a quick and accurate response you got on AMPS to your 2K-4 issue!
>
> GL
> John KK9A
>
>
>
> Mark - N5OT wrote
>
> I was not thinking about checking the continuity in the tubes themselves
> when I balked at opening up the amp deep enough to check the continuity
> at the sockets!  I didn't connect those dots initially.
>
> So anyway, you guys straightened me out.  Here's how it went:
>
> Check tubes cold.  One tube has a grid to cathode short.  Problem solved.
>
> Put two new (used) tubes in, amp runs like it should.
>
> Thanks!
>
> 73 - Mark N5OT
>
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