| INCLOSURE TYPE | ENCASED |
| INPUT IMPEDANCE PER FUNCTION W/LOAD | 50.0 KILOHMS BLANK LOCATION NOT OTHERWISE SPECIFIED |
| OUTPUT IMPEDANCE PER FUNCTION W/SOURCE ACROSS INPUT | 50.0 KILOHMS BLANK LOCATION NOT OTHERWISE SPECIFIED |
| MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| MOUNTING FACILITY TYPE AND QUANTITY | 1 THREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED |
| NOMINAL THREAD SIZE | 0.138 INCHES |
| SPECIAL FEATURES | 800 CCCLE OR 3500 CYCLE CUT OFF FREQUENCY SELECTED BY 4 POLE DOUBLE THROW SWITCH |