OK, I definately need to sort out the Studer 189 console, check out this auction:
STUDER 089 MIC PREAMPS RACKED, BIN $1600
The Studer 089 desk, built in the late 60s, is said to have one of the best microphone preamps ever built. Offered here is a pair of Studer 089 preamps in a rack, with an external power supply, which is included. The PSU can be powered with 100-240 VDC.
The rack has been built and the preamps have been checked by KID Broadcast, Germany. The unit is fully working and ready for use.
The "Line Ins" are microphone inputs, depending on the Input selected on the front panel.