Looking for a schematic of the Schoeps/Siemens CMT 340

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RuudNL

Well-known member
Joined
Apr 26, 2009
Messages
3,106
Location
Haule / The Netherlands
As the title says: I am looking for a schematic of the Schoeps/Siemens CMT 340 microphone, or the CVT 30 amplifier this microphone is based on.
The idea is to modify the 12 V phantom power this microphone needs to (standard) 48 V phantom power.  (If possible.)
Any ideas?!
 
If it's similar to the schoeps CMC then probably there's difference in one resistor between 12V/24V/48V.
 
There are indeed two versions, one with positive phantom power and one with negative pahntom power.
But the idea is the same, only difference PNP/NPN transistors etc.
 
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