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VS68

Sensibly equivalent to:
A2235 AW4 CV1068 STV280/40
See also:
Marconi Stabilovolt Advert - Marconi Stabilovolt Advert - Marconi Stabilovolt Advert - Stabilised Power Unit - CV110 short entry
    
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The VS68 is a four in one voltage stabiliser that GEC marketed as the Stabilovolt. The commercial designation is STV280/40 and has a maximum current draw of 40 mA. Also made was the STV280/80 with higher current rating.
It has four anodes, and thus four outputs with gaps of 70 volts each. These output voltages are 70, 140, 210 & 280.
The striking voltage is above 420 Volts and the tube current is 5 - 35 mA. The tube voltage regulation is about a couple of Volts for each 70 Volt step.
The wide glass tube envelope is 44 mm in diameter and, excluding the B5 base pins, is 120 mm tall.
References: Datasheet & R J Sutherland.

 

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

 

Absolute Maximum Operating Conditions
Stabiliser
Va
mAa
420
55
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 05, 2015.
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