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CV1343

Sensibly equivalent to:
A1065 ARP38 KTZ73M POVT149+D6291
    
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The CV1343 is an indirectly heated HF pentode and the base valve for the design was a modified 1937 KTZ73. The old Army service code is ARP38 and the GPO code is POVT149. Note that this valve has a 4.0 Volt heater and the later KTZ73 has a 6.3 Volt heater.
The reverse is plain zinc paint.
Looking through the top the tops of the three grids can be seen as can the cylindrical cathode tube.
The wide glass tube envelope is 29 mm in diameter and, excluding the IO base pins, is 80 mm tall.
Reference: Data-sheet.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
tc
m
h
a
g2
g3
-
h
k
g1

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
gm
4.0
0.25
250
100
-3
2.0
0.5
2.2
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 05, 2021.
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