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CV1644

Sensibly equivalent to:
E1532 POVT37C
    
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The CV1644 is a directly heated triode based on the E1532. The old GPO code is POVT37C.
The CV Type designation and a side view of the box anode. The UV base is a bayonet type and so a locating pin is required on the base shell.
The triode with the filament passing through the grid four times.
The balloon envelope is 50 mm in diameter and, excluding the UV base pins, is 102 mm tall.
Reference: Data-sheet.

 

Pin Connections
UV
1
2
3
4
g1
f
f
a

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
ra
gm
μ
2.0
0.82
150
50k
0.8
30
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated May 27, 2020.
shape:balloon construction:pinch type:triode age:1930.1940 base:uv heater:2.0v pins:4 pin:1.g1 pin:2.f pin:3.f pin:4.a
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