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ARDD5

Sensibly equivalent to:
CV1054 EB34 OM3 VR54
    
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The ARDD5 contains a pair of screened signal diodes with separate cathodes. The UK pre-CV designation is Army Receiving Double Diode five. The Royal Air Force called this valve VR54 for Valve Receiving fifty four. After the Common Valve series was introduced in 1941 to unify government procurement this valve was renamed the CV1054.
The glass envelope has been screened with an external zinc metalisation.
The rear is plain zinc paint with a corrosion spot visible.
The wide glass tube envelope is 31 mm in diameter, and excluding the IO base pins, is 62 mm tall.
References: Datasheet, 1040 & 1043.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
m
h
a(2)
k(2)
a(1)
-
h
k(1)

 

Absolute Maximum Operating Conditions
Diode
Vh
Ah
Va
mAa
6.3
0.2
200
0.8
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated March 29, 2013.
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