▼ Menu

ARP35

Sensibly equivalent to:
63SPT CV1091 CV1578 EF50 VR91 Z90
See also:
The Famous EF50 of WWII
    
Extras ▼

 

The ARP35 is the UK Army, pre-WWII, name for the EF50. It is clearly a utility valve with its plain aluminium screening can devoid of the familiar red point.
The valve is a high impedance variable μ pentode and was a workhorse of receivers for TV, radio and especially war-time radar.
The wide glass tube envelope is 32 mm in diameter and, excluding the B9G base pins, is 60 mm tall.
References: Datasheet & 1043.

 

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 November 14, 2013.
Return to Main Index