The CV1069 is a pre-WWII voltage stabiliser.

The striking voltage is 420 V, and four gaps exist within the bell cathode. The regulated voltage is high at 280 V. The tube current is 10 - 70 mA, and the regulation is 4 Volts per gap, or 1.4%.

The balloon envelope is 58 mm in diameter and, excluding the B5 base pins, is 122 mm tall.

References: Datasheet.

 
Pin Connections

B5	1	2	3	4	5
	a(4)	k	a(2)	a(3)	a(1)

 
Absolute Maximum Operating Conditions^¶

Stabiliser	Va	mAa
	280	70

Thanks to Frank Philipse for supplying the above PDF datasheet