[Heathkit] SB-104A question...!

[Alexander N. Gerli]

Hello, gang,

 

My '104A runs pretty well, except for one annoying thing:

 

Sometimes, if I want to tune just a bit - say .1kHz - the VFO and frequency
might jump a kHz or more. If I wiggle the VFO knob and tune off quite a bit
and then return to where I started, it stabilizes and I can then go in .1kHz
increments if I like.

 

Doesn't always do this, but when it does it sure is annoying. There's no
optical encoder in this VFO, so what might be the issue? Loose ground
somewhere perhaps? Where might I start looking?

 

73,

 

Sandy AC1Y

 

Alexander N. Gerli

5805 Newhall Road

Durham, NC 27713-2615

919-489-9638

 

A Scotsmen walks about 900 miles each year

Scotsmen drink about 40 gallons of whisky each year

Scotsmen get about 25 miles per gallon