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CV432

Sensibly equivalent to:
ME1400
    
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The CV432 (commercially the ME1400). is an electrometer pentode for use in high resistance circuits for such applications as PH meters. The CV specification describes it as an HF pentode operating to 125 MHz., photocell units and valve voltmeters. The prototype was the VX8048.
The envelope is covered in metallic screening paint.
The classic envelope is 29 mm in diameter and, excluding the IO base pins, is 86 mm tall.
Reference: Data-sheet.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
4.5
0.16
45
45
-2
0.80
0.20
5,000
0.24

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
-
250
100
-2
1.0
-
2.0M
1.8
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated May 30, 2025.
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