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85A1

Sensibly equivalent to:
CV431
See also:
85A1 Advert, December 1948 - Stabilized Power Supplies
    
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The 85A1 voltage stabiliser will strike at 125 volts and is useful for output currents of between 1 - 8 mA. As a reference tube the optimum operating point is with the discharge running at 4.5 mA.
This neon stabiliser dates from 1948.
The wide glass tube envelope is 27 mm in diameter and, excluding the B8B base pins, is 60 mm tall.
References: Datasheet & 1040. Type 85A1 was first introduced in 1948.

 

Pin Connections
B8B
1
2
3
4
5
6
7
8
-
a
-
k
-
-
-
k

 

Absolute Maximum Operating Conditions
Stabiliser
Va
mAa
65
8
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 31, 2013.
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