[Collins] Help with 75A-3 meter

[W1CNY Bob Rinaldi]

Hello All!  I'm in the middle or restoring a 75A3 (ser# 1147) which had =
been quite mis-treated in some earlier day (to include being home to =
many bugs e.g. insects!).

I've managed to bring it back to life, but am stumped by the S-meter.  =
It pins to the far right when the rig is turned on, and remains there. =20

I have checked the following components:

R47, R50, and R49 (variable and checks fine).
I can't find R67, although it is listed in the schematic.

All tubes check OK.

I get a minimal voltage reading across the meter. Actually about 1/2 =
volt, which does not vary.

Since the realignment requires, and is a bit easier, using the S meter =
reading, I'd like to get the bugger working.

Any suggestions would be very welcome!

Thanks,
Bob
W1CNY


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