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ARTH2

Sensibly equivalent to:
CV1347 ECH35
    
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The ARTH2 is the old UK Army name for the CV1347 triode hexode. The Mullard ECH35 was the commercial prototype. The red metalising paint indicates that this was made by Mullard.
The reverse is plain.
The classic envelope is 34 mm in diameter, and excluding the IO base pins is 92 mm tall.
Reference: Datasheet.

 

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 November 13, 2017.
shape:classic construction:pinch type:triode.hexode age:1930.1940 base:io heater:6.3v pins:8 pin:1.m pin:2.h pin:3.a pin:4.g2.g4 pin:5.g1(t).g3 pin:6.a(t) pin:7.h pin:8.k pin:tc.g1
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