CV1090 - the original 'micropup'
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The valve measures 115x38mm overall, plus the filament leads. |
| Filament volts | 8.25V |
| Filament current | 7A |
| Max anode volts | 9kV |
| Total emission | 5A |
| Max anode dissipation | 100W |
| Amplification factor (Va=1kV, Ia=100mA) |
16 |
| Max frequency | 300MHz |
| Peak pulse output (per pair) | 10kW |
| Capacitances | |
| Cag | 3.75pF |
| Cgf | 2.20pF |
| Caf | 0.90pF |
In this valve, the grid connection is at the top, filament at the bottom, and the anode is the centre block. The anode itself is a cylinder with fins attached for cooling. It has a thoriated tungsten filament consisting of a single helix.
In operation the valve must be mounted vertically. Forced air cooling is needed and the temperature of the anode block must not exceed 140°C.
