CV15, low power version of the CV1090 micropup without the anode fins and with a bolt-down heatsink for conduction cooling instead.
Markings on the valve are 37K,
P
on one side of the block, and CV15 stamped on the other.
| Filament voltage | 3.25V |
| Filament current | 6.75A |
| Max anode voltage | 4kV |
| Max anode dissipation | 1W |
| Amplification factor (at Va=500V, Ia=20mA) | 15.5 |
| Max operating frequency | 300MHz |
| Capacitances | |
| Cag | 3.7pF |
| Cgf | 2.3pF |
| Caf | 1.0pF |
Cooling should be provided so that the temperature of the anode does not exceed 140C, even if just the filament volts are applied.
