| EARPHONE CONTROLLING AGENCY | WESTERN ELECTRIC CO INC |
| EARPHONE ELEMENT TYPE | MAGNETIC |
| EARPHONE IDENTIFYING NUMBER | HC-4 /5965-284-9412/ TYPE NO. |
| EARPHONE IMPEDANCE RATING | 600.0 OHMS NOMINAL |
| EARPHONE MOUNTING METHOD | SUSPENDED ON HEADBAND |
| EARPHONE QUANTITY | 1 |
| CONNECTOR CONTROLLING AGENCY | WESTERN ELECTRIC CO INC |
| CONNECTOR IDENTIFYING NUMBER | 289B /5935-192-4779/ TYPE NO. |
| CONNECTOR NAME | PLUG |
| CONNECTOR TO JUNCTION CORD LENGTH | 8.000 FEET |
| CONTROLLING AGENCY | WESTERN ELECTRIC CO INC |
| DC RESISTANCE RATING IN OHMS | 40.0 NOMINAL |
| FREQUENCY RATING | 0.2 KILOHERTZ MINIMUM AND 4.5 KILOHERTZ MAXIMUM |
| IDENTIFYING NUMBER | N-1 /5965-242-6558/ TYPE NO. |
| IMPEDANCE RATING | 600.0 OHMS NOMINAL |
| MICROPHONE ELEMENT TYPE | CARBON |
| MICROPHONE MOUNTING FACILITY | ADAPTER FASTENED TO LEFT SIDE OF HEADBAND |
| OPERATING CURRENT RATING | 0.1 MILLIAMPERES NOMINAL |
| OUTPUT LEVEL RATING | 10 DB BELOW 6 MV |