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Radio Valve Data: 1915-1960Keith R Thrower OBE, The Valve Museum, April, 2022.
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Imported Triode Receiver Valves* | Type or Trademark | Filament | Anode | Grid | ra | gm | μ | Year | Base | Notes and applications | | | Volts | Amps | Volts | -Volts | kΩ | mA/V | | | | |
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D.E.06 | D | 1.8-3.0 | 0.06 | 20-100 | | | | | 1925 | | |
D.E. Power | D | 4.0-6.0 | 0.30 | 50-150 | | | | | 1925 | B4 | Output |
Amplifier | B | 3.8-4.0 | 0.50 | 30-100 | | | | | 1925 | B4 | Amplifier |
Detector | B | 3.8-4.0 | 0.50 | 20-60 | | | | | 1925 | B4 | Detector |
Power | B | 3.8-4.0 | 0.50 | 100-200 | | | | | 1925 | B4 | Output |
Helikon | | | | | | | | | | | |
Miniwatt | D | 3.0-3.5 | 0.06 | 20-80 | | 29.00 | 0.21 | 6.0 | 1925Ω | B4 | |
Post-1925 amplifying valves, frequency changers and signal diodes | Type | Description | Filament | Anode | Auxillary Grid | Grid | ra | gm/go | RL | Po | Rk | | Year | | | Volts | Amps | Volts | mA | Volts | mA | -V | kΩ | mA/V | kΩ | Watts | Ω | Type | Ref | |
Fama |
Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless |
Amplifier R | Triode | | | | | | | | | | | | | B4 | 1 | |
D.06 DE | Triode | | | | | | | | | | | | | B4 | 1 | |
DE Power | Triode | | | | | | | | | | | | | B4 | 1 | |
Detector | Triode | | | | | | | | | | | | | B4 | 1 | |
Power | Triode | | | | | | | | | | | | | B4 | 1 | |
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