Hi There,
I've just found a Schoeps CMC3--U with a MK41 capsule that seem to have been left aside for many years at my work, and i just grabbed it to check things out and see what is it with it..., folks at my job told me it didn't work well etc... but no other clue.
It seem to be one that will work for +48V, the R8 Resistor on the PCB is a 6.8K, i found a Schematic online...
Tested the diodes and Transistors on DMM just as simple check etc.... all seem to be fine on DMM
So plugged it in and monitored, and it's having a lot of white noise in the back of the sound... BUT it's picking up more handling noise than sound itself from the capsule... i can hear my voice from the capsule but it's not loud at all, the noise is definitely louder.
Does this sound familiar to one of you guys?
Needs better adjustment? (Old Trimmers and better change them?)
Capsule Failure?
Dead Tantalum?
Noisy Transistors?
1x BC264A FET
2x BC416 matched pairs
1x BC414
Schematic found online:
http://www.sdiy.org/oid/mics/Schoeps.gif
Thanks a lot for any tips on this one.
Best,
T.
I've just found a Schoeps CMC3--U with a MK41 capsule that seem to have been left aside for many years at my work, and i just grabbed it to check things out and see what is it with it..., folks at my job told me it didn't work well etc... but no other clue.
It seem to be one that will work for +48V, the R8 Resistor on the PCB is a 6.8K, i found a Schematic online...
Tested the diodes and Transistors on DMM just as simple check etc.... all seem to be fine on DMM
So plugged it in and monitored, and it's having a lot of white noise in the back of the sound... BUT it's picking up more handling noise than sound itself from the capsule... i can hear my voice from the capsule but it's not loud at all, the noise is definitely louder.
Does this sound familiar to one of you guys?
Needs better adjustment? (Old Trimmers and better change them?)
Capsule Failure?
Dead Tantalum?
Noisy Transistors?
1x BC264A FET
2x BC416 matched pairs
1x BC414
Schematic found online:
http://www.sdiy.org/oid/mics/Schoeps.gif
Thanks a lot for any tips on this one.
Best,
T.