GU 50
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| K | g1 | g2 | H | g3 | P | g2 | H |
| Heater Voltage | 12,6 V |
| Heater Current | 765 mA |
| mu Factor | |
| Transconductance | 4 mA/V |
| Plate Voltage | 800 V |
| G2 Voltage | 250 V |
| G1 Voltage | - 40 V |
| P Out | 60 W |
| Maximum Ratings | |
| Plate Voltage | 1000 V |
| Plate Dissipation | 40 W |
| Cathode Current | 230 mA |
| R k / h | 5 kOhm |