Finals going bad in Heathkit SB-401 transmitter?

November 10th 11, 05:39 PM posted to rec.radio.amateur.boatanchors

buzz

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Posts: 13

Finals going bad in Heathkit SB-401 transmitter?

David wrote:
I have a Heathkit SB-401 transmitter I refurbished a few years back
that exhibits a couple of peculiarities during tune-up:

1) First, on 80 meters (and only 80 meters) when I tune the final
amp’s plate circuit, the plate current dip point does not correspond
to maximum output.

Check the neutralization of the finals.

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