This exhibit carries type designations on the envelope: VR150/30, 0D3 and CV216. The glass carries the STC logo and the base carries the Brimar logo.

As a cold cathode voltage regulator it exhibits a near constant voltage drop for currents within the range 5mA to 40mA. The regulation is 150 plus or minus 5.5 Volts.

The construction is of a central cold cathode within a cylindrical anode.

The classic envelope is 37 mm in diameter and, excluding the IO base pins, is 90 mm tall.

References: Datasheet, ¹⁰⁴⁰ & ³⁰⁰². Type VR150/30 was first introduced^¶ in 1939.

 
Pin Connections

IO	1	2	3	4	5	6	7	8
	nc	k	7	nc	a	nc	3	nc

 
Absolute Maximum Operating Conditions^¶

Stabiliser	Va	Vstab	mAa
	180	150	5-40

Thanks to Frank Philipse for supplying the above PDF datasheet

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