H10-76 in a R22 Beta; impedance matching or electret mic?
Hello, all,
I recently bought two David Clark H10-76s to use in a Robinson 22 Beta. I can hear everything in both ears but I get no sidetone from the microphones. I know the mics are good because I've hooked them to a Peltor and they worked fine.
I know I can buy an electret mic replacement (one H10-76 I have now is equipped with an M-87 AIC mic and the other has an Electro-voice 81134) or an impedance matching transformer but which do I buy? Or do I buy both a new mic and an impedance converter? Also, will any electret mic do or does it need to include an amp? Can I make the transformer myself?
I'd appreciate any advice or information.
Thanks,
Nick