United CV137 diode triode
 |
This valve measures 53x17mm overall and has a B7G base. |
See also CV4059 which is based on this valve.
| Heater voltage | 6.3V | |
| Heater current | 300mA | |
| Triode | ||
| Max anode voltage | 300V | |
| Max anode dissipation | 2W | |
| Max mean cathode current | 11mA | |
| Amplification factor | Va=250V;Vg=-3V (Ia=8mA) | 36 |
| Mutual conductance | 2.5mA/V | |
| Max frequency | As frequency changer | 300MHz |
| As oscillator | 600MHz | |
| Diode | ||
| Max peak anode current | 55mA | |
| Max mean anode current | 5.5mA | |
| Max PIV | 400V | |
| Capacitances | ||
| Cin (nom) | 1.85pF | |
| Cout (nom) | 1.15pF | |
| Cat,g (nom) | 1.7pF | |
| Cg,ad (nom) | 0.05pF | |
| Cat,ad (max) | 0.2pF | |
| Cad,cd (nom) | 1.6pF | |
| Cct,cd (nom) | 0.01pF | |
| Cad,h (max) | 1.0pF | |
| Pin | Function |
| 1 | Diode anode |
| 2 | Diode cathode |
| 3 | Heater |
| 4 | Heater |
| 5 | Triode cathode |
| 6 | Triode grid |
| 7 | Triode anode |
