The ubiquitous red valve. This amplifier pentode was a general workhorse. It was extensively used in radio and radar during WW2. This example was made in America but carries the pre WW2 VR designation of an RAF receiving valve.
The pins are equi-spaced around the circumference of the pin circle.
The dimensions are 32 mm in diameter for the body of the screening can, and 60 mm in length, excluding the short B9G pins and the central spigot that locates the pins and covers the evacuation seal.
Pin Connections
B9G |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |

|
h |
g2 |
a |
g3 |
s |
k |
g1 |
s |
h |
Absolute Maximum Operating Conditions
Pentode |
Vh |
Ah |
Va |
Vs |
Vg |
mAa |
mAs |
ra |
gm |

|
6.3 |
0.3 |
250 |
250 |
-2 |
10 |
3 |
1.0M |
6.5 |
This exhibit was last updated on 25 November 2001 |
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