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Radio Valve Data: 1915-1960

Keith R Thrower OBE, The Valve Museum, April, 2022.
    
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Help information: Abbreviations - Explanations - Notes.

Post-1925 amplifying valves, frequency changers
and signal diodes

Type
Description
Filament
Anode
Auxillary Grid
Grid
ra
gm/go
RL
Po
Rk
Base (1)Pin-out details for non-exhibits can be found with the base details.
Year
 
 
Volts
Amps
Volts
mA
Volts
mA
-V
mA/V
Watts
Ω
Type
Ref
 

Britannia

 Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless
206d (White line)
Detector triode
2.0*
0.06
-
-
25.0
0.43
B4
1
1926
206h (Red line)
RF triode
2.0*
0.06
-
-
35.0
0.40
B4
1
1926
206l (Green line)
AF triode
2.0*
0.06
-
-
18.0
0.44
B4
1
1926
206rc (Blue line)
RCC triode
2.0*
0.06
-
-
120.0
0.33
B4
1
1926
215d (White line)
Detector triode
2.0*
0.15
-
-
30.0
0.50
B4
1
1926
215h (Red line)
RF triode
2.0*
0.15
-
-
40.0
0.50
B4
1
1926
215l (Green line)
AF triode
2.0*
0.15
-
-
12.0
0.50
B4
1
1926
406d (White line)
Detector triode
4.0*
0.06
-
-
19.0
0.50
B4
1
1926
406h (Red line)
RF triode
4.0*
0.06
-
-
23.0
0.65
B4
1
1926
406l (Green line)
AF triode
4.0*
0.06
-
-
11.0
0.55
B4
1
1926
406RC (Blue line)
RCC triode
4.0*
0.06
-
-
120.0
0.33
B4
1
1926
2P (Gold line)
Output triode
2.0*
0.20
-
-
6.0
0.82
B4
1
1926
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
4P (Gold line)
Output triode
4.0*
0.15
-
-
4.0
1.00
B4
1
1926
6P (Gold line)
Output triode
6.0*
0.20
-
-
3.0
1.00
B4
1
1926

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