Le 10/05/2022 ¨¤ 09:54, tedsorvino via
groups.io a ¨¦crit?:
I would try to make a PCB that holds all the high
impedance circuits for two capsules, and put the rest, included
the bias generators on a separate PCB.
Thanks Jerry. Is it necessary the bias PCBs being in the same
enclosure with the high impedance circuits?
No. It can be separate.
As I wrote earlier, using shielded wire is not
adequate. You have to make sure that all the high impedance
circuitry is in a shielded enclosure, which must also be
acoustically transparent, such as mesh.
True. Sorry for that. I read it later. The capsule is in a mesh -
the normal faraday BM 800 microphone top . Can I use copper foil
around? the mic enclosure on the inside - like I'm using on my
guitars- to reduce EMI noise, or does it affect sensitivity?
Copper foil is OK.
