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If there is enough interest in having ECM manufacture a replacement
for the WN60/61 capsule. Then how about manufacturing a capsule that
could be used in a RF mic? The capsule would be the capacitor in the
rf oscillator circuit. The resulting FM signal would then be
demodulated into a low impedance balanced output to the recording
device.

The mic electronics could be powered from 48V phantom power.

This type of microphone would be a very low noise mic!!

Anyone got any ideas, semantics, or sources of information???

Keith

the rf mic circuit is floating on the net - it is primarily of the sennheiser 405 mic. i have it on my files but i do not remember where i got it from. i suppose you could take a regulation electret, remove the fet, and experiment. i do not know how much lower noise you would get. i suspect a larger diaphragm would be lower noise, merely by having higher output.

umashankar

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