| EARPHONE CONTROLLING AGENCY | WESTERN ELECTRIC CO |
| EARPHONE ELEMENT TYPE | MAGNETIC |
| EARPHONE IDENTIFYING NUMBER | HC3 TYPE NO. |
| EARPHONE IMPEDANCE RATING | 300.0 OHMS NOMINAL |
| EARPHONE QUANTITY | 1 |
| CONNECTOR CONTROLLING AGENCY | JCENS |
| CONNECTOR IDENTIFYING NUMBER | CX-1245A/U TYPE NO. |
| CONNECTOR NAME | CORD |
| CONNECTOR TO JUNCTION CORD LENGTH | 3.167 FEET AND 7.167 FEET |
| CONTROLLING AGENCY | WESTERN ELECTRIC CO |
| DC RESISTANCE RATING IN OHMS | 33.0 NOMINAL |
| FREQUENCY RATING | 0.2 KILOHERTZ MINIMUM AND 6.0 KILOHERTZ MAXIMUM |
| IDENTIFYING NUMBER | N1 TYPE NO. |
| IMPEDANCE RATING | 300.0 OHMS NOMINAL |
| OPERATING CURRENT RATING | 61.0 MILLIAMPERES NOMINAL |
| OUTPUT LEVEL RATING | 45 DB ABOVE 1 MV |
| MICROPHONE ELEMENT TYPE | CARBON |
| MICROPHONE MOUNTING FACILITY | YOKE |
| MOUNTING METHOD | SUSPENDED ON HEADBAND EARPHONE |