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 |
|
 |
