The 90AV is a vacuum photocell with a 4 sq cm Caesium Antimony cathode. The sensitivity is 45 μA/lm at 100 Volts across the cell. The maximum anode voltage is 100 Volts and the maximum current is 5.0 μA. The dark current is quoted as 0.05 μA at 100 Volts on the anode.

The is sprayed onto the inside of the glass envelope. The two rods are the anode. The round structure near the base is the getter holder.

The thin glass tube envelope is 18 mm in diameter, and excluding the B7G base pins is 46 mm tall.

 
Pin Connections

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

 
Absolute Maximum Operating Conditions

Photocell	Va
	100

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 01 April 2008 {find valves by name}