COLIN LAMB wrote:
Hi Charlie:

I suspect that the VV dials with the GE knobs are from the BC-191/BC-375
tuning units. They were made by GE and used the particular VV drive you had
phtos of (ceramic spacers). They probably began production in the late
1930s.

73, Colin K7FM



Colin,

Thanks very much for the info, it certainly looks as if you are
correct judging from the pictures I have googled of the two radios.
I also have one of the locking knobs shown on the BC 375.



Charlie.

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There may have been another distinguishing feature of the GE VV units. It
is all a little vague, but I recall that the shafts for the knobs on the GE
units were slightly smaller than the standard 1/4" shafts.

73, Colin K7FM

COLIN LAMB wrote:
There may have been another distinguishing feature of the GE VV units. It
is all a little vague, but I recall that the shafts for the knobs on the GE
units were slightly smaller than the standard 1/4" shafts.

73, Colin K7FM



Colin,

That's right, the shaft is 3/16 inch diameter - the 'output' are 1/4
inch, I assume in order to couple to standard variable capacitors.
But I think that may have been a standard feature of the VV as the
older ones I have also have a 3/16 inch shaft.


Charlie.

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