▼ 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. For service valves it is not usual to have the manufacturers name on the envelope in plain language.
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 December03, 2012.
Return to Main Index