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Radio Valve Data: 1915-1960Keith R Thrower OBE, The Valve Museum, April, 2022.
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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 | |
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Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless |
B.E.HF | Detector or RCC triode | 4.0* | 0.50 | 120 | | - | - | | 52.0 | 0.34 | | | | B4 | 1 | 1926 |
B.E.LF | Detector or AF triode | 4.0* | 0.50 | 100 | | - | - | | 12.0 | 0.50 | | | | B4 | 1 | 1926 |
D.E.2 HF | Detector or RCC triode | 2.0* | 0.25 | 120 | | - | - | | 45.0 | 0.31 | | | | B4 | 1 | 1926 |
D.E.2 LF | General-purpose triode | 2.0* | 0.20 | 120 | | - | - | | 14.0 | 0.35 | | | | B4 | 1 | 1926 |
| Detector or RCC triode | 2.0* | 0.25 | 100 | | - | - | | 58.0 | 0.29 | | | | B4 | 1 | 1926 |
D.E.25 LF | Detector or AF triode | 2.0* | 0.25 | 80 | | - | - | | 18.5 | 0.28 | | | | B4 | 1 | 1926 |
P.2 | Detector or AF triode | 2.0* | 0.40 | 120 | | - | - | | 10.0 | 0.57 | | | | B4 | 1 | 1926 |
P.4 | Output triode | 2.0* | 0.40 | 100 | | - | - | | 10.0 | 0.57 | | | | B4 | 1 | 1926 |
P.6 | Output triode | 6.0* | 0.25 | 120 | | - | - | | 6.5 | 0.84 | | | | B4 | 1 | 1926 |
V.24 | Low capacity RF triode | 5.0* | 0.15 | 60 | | - | - | | 20.0 | 0.30 | | | | | | 1926 |
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