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6D2

Sensibly equivalent to:
6AL5 CV140 D152 D77 DD6 EAA91 EB91
See also:
Valves and their Habits - Ediswan First Preference Range Advert
    
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The 6D2 is the Mazda equivalent of the Mullard EB91, and consists of two separate signal diodes in the envelope.
The diodes were designed for vision and sound detection in television receivers. Additionally they are recommended for limiting and DC restoration.
The envelope is printed with the Mazda name and made in England.
The two small diode sections with a screen between.
This thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 43 mm tall.
References: Datasheet & 1040. Type 6D2 was first introduced in 1953.

 

Pin Connections
B7G
1
2
3
4
5
6
7
k(1)
a(2)
h
h
k(2)
s
a(1)

 

Absolute Maximum Operating Conditions
Diode
Vh
Ah
Va
mAa
6.3
0.3
150
9
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 13, 2016.
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