▼ Menu

CV1091

Sensibly equivalent to:
63SPT ARP35 EF50 POVT207 VR91 VT-250
See also:
The Famous EF50 of WWII
    
Extras ▼

 

The CV1091 is the service version of the EF50. UK government procurement specification valves normally do not identify their manufacturer. This exhibit is in a brand new condition.
The valve is a high impedance pentode and was a workhorse of receivers for both radio and especially radar.
The wide glass tube envelope is 32 mm in diameter and, excluding the B9G base pins, is 58 mm tall.
References: Data-sheet & 1040.

 

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
1M
6.5
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated October 09, 2013.
Return to Main Index