Id start with a scope and see what is happening as well as doing a hi pot on
the resonating and filter cap. Also measure the resonating cap; if its
drifted up then the circuit could be resonant too close to 120Hz.
Dont forget to crank down on the choke lamination hardware.
----- Original Message -----
From: "Jim Barber" <firstname.lastname@example.org>
Sent: Wednesday, January 04, 2012 5:41 AM
Subject: [Amps] To rewind or not? (3KA resonant filter choke)
> The "chatter" from my Henry 3KA's resonant filter choke is worrying me, so
> I'm wondering whether to have it rewound and replace the cap, do that and
> also rewind the plate xformer, or just throw it all out and stick in a
> more modern 3KV 1A xformer, a bridge and a larger filter cap. By the time
> I pay to ship the iron aound the country I suspect the last option may be
> the least expensive, but price isn't necessarily the only consideration
> here. I want to run it on a regular basis for another 20 years, and
> perform as well as it does now.
> Jim, N7CXI
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