Recording and Measurement Microphones

More generally, circuits for electrically-balanced output from electret microphones. I keep meaning to build this for some of the Sanken mic capsules I've got...

to audio balanced elecret electronics microphone recording ... on 20 September 2017

Balanced Transmitter and Receiver II

Reasonably straightforward balanced input, using an op-amp.

to audio balanced electronics proj.active-speaker ... on 08 February 2009