| GTE COMMUNICATION SYSTEMS CORP | |
| Discontinued without Replacement,Discontinued without Replacement | |
| 0.875 INCHES | |
| NOT INCLUDED | |
| U-77/U | |
| DYNAMIC | |
| 3 | |
| SOUND POWERED | |
| DYNAMIC | |
| PROVIDED | |
| NOT PROVIDED | |
| 0.250 INCHES | |
| ANY ACCEPTABLE | |
| 7/8-20 THREAD | |
| LUG | |
| 0.875 INCHES | |
| NOT INCLUDED | |
| U-77/U | |
| DYNAMIC | |
| 3 | |
| SOUND POWERED | |
| DYNAMIC | |
| PROVIDED | |
| NOT PROVIDED | |
| 0.250 INCHES | |
| ANY ACCEPTABLE | |
| 7/8-20 THREAD | |
| LUG |
