Heath SB 104a

[wayne]

Hello,

I have had an SB 104a which I just got back on the air after about 15
years.  Works great except now notice the VFO will become unstable and
frequency will shift.  This however does not affect frequency I am
transmitting on.  Sometimes when changing bands the frequency will stay
on previous band and then suddenly will go to the band I switched to and
be right on frequency.

There is an adjustment pot on the front of the VFO which I have adjusted
and also used contact cleaner spray.

Anyone ever experience this problem and if so would appreciate any
information as to how you may have remedied this?

Thank you.

73,
Wayne, NM3B
St.Marys, Pa

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