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CV5080

Sensibly equivalent to:
CV358 EF37A
    
Extras ▼

 

The CV5080 is based on the Mullard EF37A but the specification refers to use as an HF pentode with limited microphony and not as an audio pre amplifier valve.
The reverse is plain zinc paint.
The wide glass tube envelope is 28 mm in diameter and, excluding the IO base pins, is 85 mm tall.
Reference: Datasheet

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.2
300
125
-2
3
0.8
2.0M
1.8
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 11, 2015.
shape:wide.glass.tube construction:pinch type:pentode age:1930.1940 base:io heater:6.3v pins:8 pin:1.m pin:2.h pin:3.a pin:4.g2 pin:5.g3 pin:6.nc pin:7.h pin:8.k
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