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MVSPenB

Sensibly equivalent to:
A50P ACVP2 CV3572 VP4A W42
    
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The MVSPenB was introduced in 1937. It has the standard mains heater of the day, 4.0 V at 1.0 A. This variable μ pentode was designed for RF and IF amplifier service in superhet radio receivers.
The branding is printed on the zinc metalising paint and is typical of late 1930s Cossor Valves. Our other MVSPenB has the diamond label that echo's the 'New Process' design of the early 1930s.
The classic envelope is 43 mm in diameter and, excluding the B7 base pins, is 104 mm tall.
References: Datasheet, 1043 & 1040. Type MVSPenB was first introduced in 1937.

 

Pin Connections
B7
1
2
3
4
5
6
7
tc
m
a
g3
h
h
k
g2
g1

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
4.0
1.0
200
100
-1.5
4.3
1.3
0.6M
2.2
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated December14, 2012.
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