I see there was no content in my messages the first time around. I'm
not sure what the problem is, but the workaround is to use a different
email program. Here's what I wrote:
- - - - - - - - - - - - - - - - -
Greetings,
I have a Henry 2K-4A console, and when I use it on the air, a few people
have told me my signal is not pure. One described AC hum on both sides
of my signal frequency. Another friend said I had "sidecars."
My conclusion is I need to replace the big (oil-filled) capacitor in the
power supply. I have a friend with an older Henry, I think it was a
2K-3 console, who had a similar-sounding issue, and he says he changed
his big capacitor in the power supply, but it didn't really fix the
problem. He sold the amp and I got the capacitor that didn't fix his
problem.
Two questions:
1. Am I looking in the right direction or the wrong direction? Any
other PS due diligence I need to do? Any Henry 2K-4A-specific anecdotes
in the brain trust?
2. My Henry has the factory capacitor from the 1970s, which is 20uf @
5000 volts. The replacement I have says "replacement for Henry
capacitor" but the values are 16uf @ 7500 volts. It's close to the same
physical size but not exactly the same size. It has a 2019 date stamp.
Guidance appreciated.
73 - Mark N5OT
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