The S130 gas filled voltage stabiliser is on a B4 base. The striking voltage is 180 V and the burning current is from 6 to 75 mA. Within the current range the regulation is 5 volts.

The balloon envelope is 47 mm in diameter and, excluding the B4 base pins, is 100 mm tall.

References: Datasheet & ¹⁰⁴⁰. Type S130 was first introduced^¶ in 1935.

 
Pin Connections

B4	1	2	3	4
	a	k	-	-

 
Absolute Maximum Operating Conditions^¶

Stabiliser	Va	mAa
	120	75

Thanks to Andy Cowley for supplying the above PDF datasheet