Radio Valve Data: 1915-1960

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

Post-1925 amplifying valves, frequency changers
and signal diodes

Type

Description

Filament

Anode

Auxillary Grid

Grid

r_a

g_m/g_o

R_L

P_o

R_k

Base ^{(1)Pin-out details for non-exhibits can be found with the base details.}

Year

Volts

Amps

Volts

mA

Volts

mA

-V

kΩ

mA/V

kΩ

Watts

Ω

Type

Ref

 Quikko

 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

D.E.25 HF

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