AT&T
6 models recorded, with the line-output transformer or tripler each was fitted with.
| Model | Parts |
|---|---|
| 340 | HR 46079 |
| 53 D 510 | HR 42085 HR 46082 |
| CRT 318 | HR 46065 HR 46079 |
| CRT 319 | HR 46065 HR 46079 |
| MD 195 A | HR 46065 |
| MONITOR | HR 42085 HR 46065 HR 46079 HR 46082 |