BIR
5 models recorded, with the line-output transformer or tripler each was fitted with.
| Model | Parts |
|---|---|
| BIR 2138 | HR 81789 |
| BIR 2138 C | HR 81938 |
| BIR 2188 | HR 81938 |
| BIR 2988 | HR 81938 |
| CHASIS AK 9-90 | HR 81938 |
5 models recorded, with the line-output transformer or tripler each was fitted with.
| Model | Parts |
|---|---|
| BIR 2138 | HR 81789 |
| BIR 2138 C | HR 81938 |
| BIR 2188 | HR 81938 |
| BIR 2988 | HR 81938 |
| CHASIS AK 9-90 | HR 81938 |