32 Telex run on 60 MA. Some GK'ers with I-Telex run them at a lower current. Have to check with them for help.

32's with UCC-5 (rare) can run on 20 or 60 MA.

33's with UCC-6 (common) can run on 20 or 60 MA.

Strapping for both UCC's can change both the interface MA and Half Duplex (2 wire) or Full Duplex operation.

Most 33's are 20 MA Full Duplex (4 wire).

73,

Wayne

KB1FDW