Triode Receiver Valves (pre-1926)* | Type or Trademark | Filament | Anode | Grid | ra | gm | μ | Year | Base | Notes and applications | | | Volts | Amps | Volts | -Volts | kΩ | mA/V | | | | |
|
| B | 4.0 | 0.75 | 30-80 | | 36.0 | 0.17 | 6.0 | 1922 | | General purpose |
A.R. (green line) | B | 4.0 | 0.75 | 30-80 | | 15.0 | 0.40 | 6.0 | 1925 | B4 | Detector/AF amp. |
A.R. (red line) | B | 4.0 | 0.75 | 30-80 | | 30.0 | 0.33 | 10.0 | 1925 | B4 | RF amplifier |
| D | 2.8-3.0 | 0.07 | 30-80 | 1.5 | 30.0 | 0.36 | 11.0 | 1923 | B4 | General purpose |
A.R.06 (gn. line) | D | 2.5-3.0 | 0.06 | 20-100 | 4.0 | 14.0 | 0.35 | 5.0 | 1924 | B4 | Detector/AF amp. |
A.R.06 (red line) | D | 2.5-3.0 | 0.06 | 20-100 | 1.5 | 35.0 | 0.29 | 10.0 | 1924 | B4 | RF amplifier |
| D | 1.8-2.0 | 0.30 | 20-50 | 1.0 | 27.0 | 0.30 | 9.0 | 1923 | B4 | General purpose |
A.R.D.E. (gn. line) | D | 1.8-2.0 | 0.30 | 20-100 | 4.0 | 15.0 | 0.35 | 5.0 | 1924 | B4 | Detector/AF amp. |
A.R.D.E. (red line) | D | 1.8-2.0 | 0.30 | 20-100 | 1.5 | 40.0 | 0.25 | 10.0 | 1924 | B4 | RF amplifier |
E.S.1 | B | 4.0 | 0.75 | 20-100 | | 25.0 | 0.30 | 7.5 | 1919Ω | B4 | Similar to R |
E.S.2 | B | 4.0 | 0.75 | 15-60 | | | | | 1920 | B4 | Both designed by |
E.S.4 | B | 4.0 | 0.75 | 30-80 | | | | | 1920 | B4 | Scott-Taggart |
P.V.1 | B | 6.0 | 1.50 | 300-600 | | 20.0 | 0.55 | 11.0 | 1924 | B4 | Output |
| B | 6.0 | 1.50 | 200-400 | | 11.0 | 0.41 | 4.5 | 1924 | B4 | Output |
P.V.3 | B | 4.0 | 0.70 | 70-110 | | 25.0 | 0.20 | 5.0 | 1924 | B4 | Output |
| D | 5.0 | 0.25 | 50-150 | 4.0 | 6.0 | 1.00 | 6.0 | 1924 | B4 | Output |
P.V.6 D.E. | D | 1.8-2.0 | 0.50 | 60-120 | 6.0 | 10.0 | 0.60 | 6.0 | 1925 | B4 | Output |
| D | 3.0 | 0.12 | 60-120 | 7.0 | 10.5 | 0.58 | 6.0 | 1925 | B4 | Output |
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 | |
Ediswan |
Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless |
5E.225 | Output pentode | 2.0* | 0.25 | 150 | 6.0 | 120 | - | 7.5 | | 1.00 | | | | B4+st | 21 | 1928 |
5E.255 | Output pentode | 2.0 | 0.20 | 150 | 9.5 | 150 | - | 4.5 | 74.0 | 2.5 | 15.0 | 0.60 | | B5 | 6 | |
5E.415 | Output pentode | 4.0* | 0.25 | 300 | 20.0 | 200 | 4.5 | 25.0 | 1.05 | 1.70 | 15.0 | 2.75 | | B4+st B5 | 21 6 | 1928 |
B.T.S.215 | See BTH type B.S.215 | 2.0* | 0.15 | | | - | - | | | | | | | B4 | 1 | 1927 |
D.R.2 | Detector or AF triode | 2.0* | 0.10 | 40-80 | | - | - | | 27.0 | 0.30 | | | | B4 | 1 | 1926 |
E.S.60 | Output triode | 6.0* | 4.00 | 500 | 80.0 | - | - | 110.0 | 1.2 | 4.00 | | | | L4 | 1 | |
E.S.75 | Output triode | 10.0* | 4.20 | 1000 | 75.0 | - | - | 150.0 | 2.1 | 2.40 | | 15.0 | | B4F | 2 | 1930 |
E.S.75H | Output triode | 10.0* | 4.20 | 1000 | 75.0 | - | - | 150.0 | 3.2 | 3.40 | | 15.0 | | B4F | 2 | |
E.S.100 | Output triode | 6.0* | 3.00 | 1000 | | - | - | | 1.75 | | 7.0 | 30.0 | | L4 | 1 | 1936 |
E.S.220 | Detector triode & AF triode | 2.0* | 0.20 | 60-90 120-150 | | - | - | 280.0 50.0 | 0.14 0.20 | | | | | 6-pin | † | 1927 |
| General-purpose triode | 2.0* | 0.10 | 60-120 | | - | - | 2.0 | 16.5 | 0.60 | | | | B4 | 1 | 1926 |
G.P.4 | General-purpose triode | 4.0* | 0.15 | 60-120 | | - | - | 1-2 | 22.0 | 0.55 | | | | B4 | 1 | 1926 |
|
H.F.210 | RF or detector triode | 2.0* | 0.10 | 120 | | - | - | | 25.0 | 0.80 | | | | B4 | 1 | 1928 |
H.F.410 | RF or detector triode | 4.0* | 0.10 | 120 | | - | - | | 22.0 | 1.10 | | | | B4 | 1 | 1928 |
H.F.607 | RF or detector triode | 6.0* | 0.07 | 120 | | - | - | | | | | | | B4 | 1 | 1928 |
H.F.610 | RF or detector triode | 6.0* | 0.10 | 120 | | - | - | | 21.0 | 1.20 | | | | B4 | 1 | 1928 |
| AF triode | 2.0* | 0.10 | 120 | | - | - | | 13.0 | 1.00 | | | | B4 | 1 | 1928 |
L.F.410 | AF triode | 4.0* | 0.10 | 120 | | - | - | | 10.5 | 1.20 | | | | B4 | 1 | 1928 |
L.F.410A | AF or output triode | 4.0* | 0.10 | 120 | | - | - | | 4.5 | 2.00 | | | | B4 | 1 | 1928 |
| AF triode | 6.0* | 0.10 | 120 | | - | - | | 0.0 | 1.50 | | | | B4 | 1 | 1928 |
MI.41 | RF triode | 4.0 | 1.00 | | | - | - | | 9.0 | 1.75 | | | | B4+2tt | 22 | 1928 |
MI.41 HF | RF triode | 4.0 | 1.00 | | | - | - | | 9.0 | 1.75 | | | | B4+2tt | 22 | 1928 |
MI.41 LF | AF triode | 4.0 | 1.00 | | | - | - | | | | | | | B4+2tt | 22 | 1928 |
MI.41 RC | RCC triode | 4.0 | 1.00 | | | - | - | | 50.0 | 0.90 | | | | B4+2tt | 22 | 1928 |
|
P.V.2 (DE) | Output triode | 2.0* | 0.15 | 80-120 | | - | - | 4.5 | 9.0 | 0.66 | | | | B4 | 1 | 1926 |
| Output triode | 2.0* | 0.15 | 60-140 | | - | - | 6-12 | 6.0 | 0.70 | | | | B4 | 1 | 1928 |
P.V.4 D.E. | Output triode | 4.0* | 0.35 | 60-120 | | - | - | 3-10 | 9.5 | 0.65 | | | | B4 | 1 | 1926 |
P.V.215 | Output triode | 2.0* | 0.15 | 120 | | - | - | | 6.6 | 1.20 | | | | B4 | 1 | 1928 |
P.V.225 | Output triode | 2.0* | 0.25 | 120 | | - | - | | 2.7 | 1.10 | | | | B4 | 1 | 1928 |
P.V.410 | Output triode | 4.0* | 0.10 | 120 | | - | - | | 5.5 | 1.00 | | | | B4 | 1 | 1928 |
P.V.425 | Output triode | 4.0* | 0.25 | 120 | | - | - | | 2.0 | 1.50 | | | | B4 | 1 | 1928 |
P.V.610 | Output triode | 6.0* | 0.10 | 90 | | - | - | | 4.2 | 1.20 | | | | B4 | 1 | 1928 |
P.V.625 | Output triode | 6.0* | 0.25 | 150 | | - | - | | 3.0 | 1.00 | | | | B4 | 1 | 1928 |
P.V.625A | Output triode | 6.0* | 0.25 | 200 | | - | - | | 1.1 | 3.60 | | | | B4 | 1 | 1928 |
P.V.625X | Output triode | 6.0* | 0.25 | 200 | 20.0 | - | - | 15.0 | 2.0 | 3.50 | | | | B4 | 1 | 1928 |
| RCC triode | 2.0* | 0.10 | 120 | | - | - | | 150.0 | 0.20 | | | | B4 | 1 | 1926 |
|
R.C.210 | RCC triode | 2.0* | 0.10 | 120 | | - | - | | 67.0 | 0.60 | | | | B4 | 1 | 1928 |
R.C.410 | RCC triode | 4.0* | 0.10 | 120 | | - | - | | 61.0 | 0.65 | | | | B4 | 1 | 1927 |
R.C.610 | RCC triode | 6.0* | 0.10 | 120 | | - | - | | 50.0 | 0.80 | | | | B4 | 1 | 1927 |
S.G.215 | RF tetrode | 2.0* | 0.15 | 150 | | 75-120 | | | 140.0 | 1.00 | | | | B4+tc | 2 | 1928 |
S.G.410 | RF tetrode | 4.0* | 0.15 | 150 | | | | | 115.0 | 1.20 | | | | B4+tc | 2 | 1928 |
S.G.610 | RF tetrode | 6.0* | 0.15 | 150 | | | | | 100.0 | 1.40 | | | | B4+tc | 2 | 1928 |
V1505† | Output triode Class AB1 PP | 14.0* | 6.50 | 2000 | 360.0 | -
| -
| 125.0 | | 7.50 | 10.0 | 300
| | USL4b | - | |
† See British Radio Valves. The Classic Years: 1926-1946, p. 19.
† Later supplied by GEC (push-pull data from 1957 GEC Circuit Supplement).
Rectifiers | Type | Class | Cathode | Va | DC Ia | PIV | DC Vo | Base | Year | | | Type | Volts | Amps | Max RMS | mA | Volts | Volts | Type | Ref | Year |
Ediswan |
Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless |
C.R.1 | HW | DH | 6.0 | 2.00 | 5000 | | | | B4 | 4 | 1932 |
C.R.2 | HW | DH | 4.0 | 0.40 | 250 | 30 | | | B4 | 4 | |
U.222 (Eliminator) | FW | DH | 2.0 | 2.20 | 125 | 30 | | | B4 | 5 | 1928 |
U235 (Batt. Charger) | FW | | | | | | | | | | 1928 |
U600 | FW | DH | 2.0 | 8.0 | | 6000 | | 30 | | | |
Thyratrons | Type | Heater | Anode | Control | fmax | Gas | Base | Year | | Volts | Amps | Pk Volts | Pk mA | Ratio | KHz | | Type | Ref | Year |
Ediswan |
Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless |
HE/AC.1 | 4.0 | 1.20 | 150 | 150 | 20 | | Helium | B5 | 1 | 1935 |
MR/AC.1 | 4.0 | 1.20 | 150 | 150 | 20 | | Mercury | B5 | A | 1932 |
|