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Old 12th Dec 2021, 4:05 pm   #20
JHS_Syke
Triode
 
Join Date: Nov 2021
Location: Syke, near Bremen,Germany.
Posts: 29
Default Re: How to repair a fine coarse tuning poti ?

This is exactly the same as mine !!
It is an Allen-Bradley Series 70 Mod Pot.

The problem is not electrical, but it is not any more possible to adjust the VFO exactly.
My quick repair worked so far for the moment. But fine tuning is only chance.
The two 1k pots and the thin shaft do not any more fit exactly together. So the frequency is jumping to and fro.

I have worked out a new plan to repair the old one, maybe there is no need for a new one.

Joerg
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