The CV422 is a voltage stabiliser with a separate priming anode.

The tube strikes at 120 Volts and regulates to 108 Volts for currents of 5 to 45 mA. Over this current range the voltage will vary by 5 volts, the 108 volts occurs at a current of 25 mA.

The wide glass tube envelope is 28.4 mm in diameter, and excluding the B8B base pins is 64 mm tall.

References: Datasheet.

 
Pin Connections

B8B	1	2	3	4	5	6	7	8
	a	a	p	k	k	k	k	k

 
Absolute Maximum Operating Conditions^¶

Stabiliser	Va	mAa
	108	25

Thanks to Frank Philipse for supplying the above PDF datasheet