▼ Menu

Radio Valve Data: 1915-1960

Keith R Thrower OBE, The Valve Museum, April, 2022.
    
Extras ▼

PDF

 

Help information: Abbreviations - Explanations - Notes.

 

Triode Receiver Valves (pre-1926)*

Type or
Trademark
Filament
Anode
Grid
ra
gm
μ
Year
Base
Notes
and applications
(1)The letters indicate the three types of filaments found on these valves. B = bright emitter, D = dull emitter, O = oxide-coated.
Volts
Amps
Volts
-Volts
mA/V
 
(2)The year shown is when it is believed the type was first issued. This date is accurate for most types but cannot be guaranteed for them all.
(3)Pin-out details for non-exhibits can be found with the base details.
  This table lists valves that were manufactured in the UK or which were claimed to be of UK manufacture. In practice several of the smaller companies imported their valves from abroad.

Penton

H.E.4
D
5.0
0.15
40-90
25.0
0.24
6.0
1924
B4
RF amp./detector
H.E.6
D
3.5
0.15
40-90
40.0
0.24
9.5
1924
B4
General purpose

Use browser back button to return.
rvd-019