"Brian Gaff" wrote in message
...

No I said it has a battery. This is the powe it needs. There is no power
from the mixer at all, simply a resistor from the end of the input
electrolytic to ground, though I think its not a small one.


If the battery is connected between the drain of the FET and the cable inner
then the signal would be developed across a resistor connected between the
cable inner and ground. Normally I would expect that resistor to be included
in the mic, but if these mics didn't have that and the resistor in the mixer
were isolated via the bass-cut capacitor then there'd be no DC path and the
mic wouldn't work.

David.