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90CG

Sensibly equivalent to:
CV2133
    
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Mullard describe the 90CG as a gas filled photo cell, most sensitive to incandescent light sources and to infra-red radiation.
The maximum anode voltage is 90 V and pin four faces the direction of the incident light.
Caesium on oxidised silver is the active material and the cathode effective area is 3 sq cm. The dark current is 0.1 µA and the maximum current is 2 µA.
The curved cathod with rod anode in front.
Front view.
The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 47 mm tall.
Reference: Datasheet. Type 90CG was first introduced in 1955.

 

Pin Connections
B7G
1
2
3
4
5
6
7
-
k
-
a
-
k
-

 

Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 06, 2015.
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