We have a Gen Rad 1933 Sound Level Meter with one wire ripped off the
bottom of the mast. It comes off of the signal wire (white), and is
about the same length as the other wires that go to the meter board.
The only two places that it looks like it could have been soldered are
both power supply lines (+9v & -9V). The schematic in the manual from
Ietlabs is cut off (http://www.ietlabs.com/pdf/Manuals/1933_im.pdf ,
page 58), same thing on the manual from bama. Anyone happen to have
this manual laying around?

Thanks,
Steve