I acquired an ancient microphone tester made by Motorola,
Model ST-855. It apparently has a tone generator that
you can hold the microphone over and a VU meter to
watch it with. The tone generator doesn't work
and the VU circuit is a little sluggish.
Anybody got a manual or even a schematic for this
old fellar they would be willing to part with or
to copy? I would certainly be willing to pay
for something like this rather than have to trace
out all this wiring. . .
I think it could use some electrolytic transplants.
In addition, somebody left the batteries in it too
long and it corroded the battery terminals.
Please reply direct.
Micheal Salem N5MS
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