A mic that never was (a thought-experiment circuit for the RK-12 capsule)

[KrIVIUM2323]

Yes. I built the first version of it with BF245a in J1 and J2 position.
Here is a rap song with Rev 1 of that circuit.

Both the mic and mix sound great.
Off topic:
Analag, do you plan to share the different circuits you shown in your The Mic thread?

 

[analag]

Both the mic and mix sound great.
Off topic:
Analag, do you plan to share the different circuits you shown in your The Mic thread?

Thanks. I'll share them. In that song I'm using a DIY M1 type pre. Discrete opamp with double current mirror or Widlar CM and I did the bootstrapped CS for better performance than the diode biased thing. It's a modified 990 then into my optical comp. I did a total redesign on that one. It now uses 6N23p. I think it sounds better.