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Pen46

Sensibly equivalent to:
CV1127 V1111 VT127
See also:
CV1127 short entry - Murphy Radio
    
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The Pen46 is an early television line output pentode valve. In line scan duty high surge voltages appear, this valve can withstand an anode surge of 3,000 Volts.
The Pen46 was used in the 1948 Murphy television receiver V114 as the line output valve.
The box anode is open at the sides, and two of the helical wire grids are visible.
The classic envelope is 50 mm in diameter and, excluding the MO base pins, is 118 mm tall.
References: Data-sheet, Data, 1040 & 1043. Type Pen46 was first introduced in 1940. See also 1940 adverts.

 

Pin Connections
MO
1
2
3
4
5
6
7
8
tc
h
k
nc
g2
g1
nc
nc
h
a

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Pdiss
4.0
1.75
315
230
20W
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 21, 2023.
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