PROTECH
52 models recorded, with the line-output transformer or tripler each was fitted with.
| Model | Parts |
|---|---|
| 2042 RS | HR 7503 |
| 2142 TXS | HR 7503 |
| 2816/9 | HR 8771 |
| 284 BM | HR 8771 |
| 360 P | HR 8361 |
| 3710 | HR 8036 HR 9104 |
| 3710 T | HR 8036 HR 9104 |
| 3731 T | HR 7950 |
| 3743 | HR 9104 |
| 3753 | HR 8035 HR 8036 HR 9104 |
| 5166 | HR 8036 |
| 5166 NT | HR 8118 HR 9567 |
| 5179 NT | HR 7571 HR 9567 |
| 5566 T | HR 8035 |
| 7096 NTX | HR 7563 |
| 7295 | HR 6465 HR 9566 |
| 7296 | HR 8055 HR 9566 |
| 731314 | HR 8011 |
| CE 3703 | HR 8205 |
| CHASIS 11 AK 08 | HR 9104 |
| CHASIS 11 AK 10 | HR 7562 HR 8036 HR 9567 |
| CHASIS 11 AK 20 | HR 7950 |
| CHASIS 11 AK 20 M 3 | HR 7950 |
| CHASIS 3719 | HR 8205 |
| CTV 1401 R | HR 80089 |
| CTV 1403 R | HR 7728 |
| CTV 1403 RT | HR 7728 |
| CTV 2003 RT | HR 7731 |
| CTV 2272 NTX | HR 8011 |
| CTV 2596 | HR 8011 |
| CTV 2596 NTX | HR 8011 |
| CTV 2725 | HR 8011 |
| CTV 2770 R | HR 7960 |
| CTV 2800 TX | HR 7140 HR 7258 HR 8011 |
| CTV 2893 | HR 7140 |
| CTV 2893 NICAM | HR 7140 |
| CTV 2894 | HR 7140 |
| CTV 2895 | HR 7258 |
| CTV 2895 NTX | HR 7258 |
| CTV 2996 NTX | HR 8011 |
| CTV 3710 T | HR 9104 |
| CTV 3731 T | HR 7950 |
| CTV 7096 | HR 8011 |
| CTV 7296 | HR 8055 HR 9566 |
| CTV 8218 A | HR 7918 |
| IPN 731314 | HR 8011 |
| LE 3703 | HR 8205 |
| LF 3703 | HR 8205 |
| LTVR 360 P | HR 8361 |
| LTVR 3600 | HR 8361 |
| PT 37 | HR 8915 |
| STV 7096 NTX | HR 7563 HR 8011 |