xeawr
Well-known member
Ok I know this one will sound really odd. Let me explain:
I have an old microphone (from the 60s?) that once sported a dynamic capsule. But it seems to be impossible to get a fitting replacement, besides I'm not really interested in a restoration job. I just want this mic up and running with a decent quality. Good enough for some guitar amps, scratch vocals, etc. - u know - as a "color" mic.
Since space is really limited I need a circuit with as few parts as possible. I decided to take an electret capsule and an output transformer (the mic previously had a tiny transformer installed).
I put this little circuit together, it looks almost too simple, so, question, am I missing something? (I know I put the polarity of the output coupling cap wrong...)
here's the J113 data sheet for reference:
https://www.onsemi.com/pub/Collateral/MMBFJ113-D.PDF
I have an old microphone (from the 60s?) that once sported a dynamic capsule. But it seems to be impossible to get a fitting replacement, besides I'm not really interested in a restoration job. I just want this mic up and running with a decent quality. Good enough for some guitar amps, scratch vocals, etc. - u know - as a "color" mic.
Since space is really limited I need a circuit with as few parts as possible. I decided to take an electret capsule and an output transformer (the mic previously had a tiny transformer installed).
I put this little circuit together, it looks almost too simple, so, question, am I missing something? (I know I put the polarity of the output coupling cap wrong...)
here's the J113 data sheet for reference:
https://www.onsemi.com/pub/Collateral/MMBFJ113-D.PDF