I have recently purchased a Telefunken/Neumann SM-2 microphone (sn#302) with power supply (type: NSM; sn#342). Can I get the proper schematics for the microphone and power supply? Also, the microphone was sold to me without both the 12 pin Tuchel type connecting cable for the power supply and the 5 pin output cable. Who do I contact to purchase the K11 replacement cable? Thank you.