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

 Eton

 Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless

HF

RF triode

1.4*

0.21

80

0.8

-

-

1.5

15.0

0.37

B4

1

1928

LF

AF triode

1.4*

0.21

100

1.75

-

-

4.5

11.0

0.50

B4

1

1928

LP

Output triode

1.4*

0.21

110

4.5

-

-

7.5

5.2

0.58

B4

1

1928

RC

RCC triode

1.4*

0.21

100

0.8

-

-

1.5

24.0

0.40

B4

1

1928