Dave wrote:
Hey all,

Would an air-gap tuning capacitor intended for transmitting hook up any
differently from an air-gap tuning capacitor intended for receiving? I
built a project following the schematic for a commercial product, but the
(intended for transmitting) capacitor doesn't like being hooked up with the
stator grounded. Can't figure out how to make it work the way the schematic
is drawn, so I ungrounded the stator and take the input for the amplifier
from there instead of the rotor. And doing this, it works fine. Anyone
have any input? I'm all ears...

Thanks,

Dave



No difference on the hook up question.

If you ground the stator the the shaft to the rotor will be "hot" and
that is probably your problem.
You can operate that way but you have to use an insulated coupling on
the shaft to the rotor.

Depending on the use, even that might give you trouble.