TomWaterman
Well-known member
Hey, am posting for a colleague who has tried to reverse engineer a proximity sensor for use with some MIDI / MaxMSP live performance electronics.
This is the schemo he sent me after drawing it out from the PCB he's copying.
I can't make head nor tail of it and was wondering if it looks right? There are two plates (A&B) that form a capacitor and C varies as you move you hand closer like that of a theramin....but I'm (both of us) not clear on the transistor configs.
We would both be really grateful if one of you esteemed brains could shed some light on the circuit.
Cheers Tom
This is the schemo he sent me after drawing it out from the PCB he's copying.
I can't make head nor tail of it and was wondering if it looks right? There are two plates (A&B) that form a capacitor and C varies as you move you hand closer like that of a theramin....but I'm (both of us) not clear on the transistor configs.
We would both be really grateful if one of you esteemed brains could shed some light on the circuit.
Cheers Tom