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ARTP2

Sensibly equivalent to:
CV1345 TP25
    
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The ARTP2 is a battery triode pentode that was renamed CV1345 when the common valve register was introduced for UK government procured valves. The prototype was the Mazda TP25 and the ARTP2 has a Mazda Octal base that few, if any, other manufacturers used.
The reverse is zinc paint with an inspection stamp. The 193 is visible but the last digit is missing.
The classic envelope is 32 mm in diameter, and excluding the MO base pins, is 89 mm tall.
References: Datasheet, 1040 & 1043. Type ARTP2 was first introduced in 1938.

 

Pin Connections
MO
1
2
3
4
5
6
7
8
tc
f-
-
a
a(t)
g1(t),g3
m
g2
f+
g1

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
2.0
0.2
120
60
-1.5
0.58
0.92
1.3M
0.26

 

Absolute Maximum Operating Conditions
Triode
Va
mAa
80
2.5
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated March 17, 2014.
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