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CV1347

Sensibly equivalent to:
ARTH2 CV281 CV1099 CV1581 CV1944 ECH35 X61M
    
Extras ▼

 

The CV1347 was originally known as the ARTH2. The AR Stands for Army Receiving.
The Mullard ECH35 Triode Hexode was the commercial equivalent and prototype.
The tubular construction suggests a post war valve made for replacement purposes.
The plain screening paint of the reverse side.
Seen from the top the central cylindrical cathode has the control grid close by.
The wide glass tube envelope is 29 mm in diameter, and excluding the IO base pins is 94 mm tall.
Reference: Data-sheet. Type CV1347 was first introduced in 1935.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
tc
m
h
a
g2,g4
g1(t),g3
a(t)
h
k
g1

 

Absolute Maximum Operating Conditions
Hexode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.3
300
100
-2.0
2.2
3.0
1.3M
0.65

 

Absolute Maximum Operating Conditions
Triode
Va
mAa
150
3.3
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 08, 2021.
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