| Resistance | 5 (T) - 1 (E) | Always | 8 to 12 kΩ |
| 7 (RV) - 1 (E) | Light control rheostat fully turned right → fully turned left | Below 100 Ω → 8 to 12 kΩ |
| Resistance | 8 (T) - 4 (E) | Always | 8 to 12 kΩ |
| 6 (RV) - 4 (E) | Light control rheostat fully turned right → fully turned left | Below 100 Ω → 8 to 12 kΩ |
| Resistance | 5 (T) - 1 (E) | Always | 8 to 12 kΩ |
| 7 (RV) - 1 (E) | Light control rheostat fully turned right → fully turned left | Below 100 Ω → 8 to 12 kΩ | |
| 5 (T) - 6 (TC) | TAIL cancel switch off → on | 1 MΩ or higher → Below 1 Ω |
| Resistance | 8 (T) - 4 (E) | Always | 8 to 12 kΩ |
| 6 (RV) - 4 (E) | Light control rheostat fully turned right → fully turned left | Below 100 Ω → 8 to 12 kΩ | |
| 8 (T) - 7 (TC) | TAIL cancel switch off → on | 1 MΩ or higher → Below 1 Ω |