CV807 3A4 Tube
NOS
Product Code: VCV807
$9.50
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NOS Radiotron CV807 3A4
Never opened since it was made in 1964
The CV807 miniature output pentode is specified for both audio and transmitter use. The CV807 is the same as the commercial 3A4 and the envelope has both Type designations. For a small dry battery valve 1.2 Watts output in the HF range would be quite an achievement. Clandestine radio springs to mind. The thin glass tube envelope is 17 mm in diameter and, excluding the B7G base pins, is 44 mm tall.
| Filament voltage | 1.4/2.8V |
| Filament current | 200/100mA |
| Max anode voltage | 165V |
| Max screen voltage | 150V |
| Mutual conductance * | 2.0mA/V |
| Anode impedance * | 100k ohms |
| Max anode dissipation | 2.2W |
| Max screen dissipation | 1.0W |
| Max cathode current | 27mA |
| Capacitances | |
| Cag max | 0.35pF |
| Cae | 4.2pF |
| Cge | 4.8pF |
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