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CV4028

Sensibly equivalent to:
0B2WA 6074 CV1833 CV4101 M8224
    
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The CV4028 gas discharge voltage stabiliser is the UK Government procurement specification version of the commercial 0B2WA B7G voltage stabiliser.
The regulation of this tube was 3 Volts for currents of between 5 and 30 mA. The CV4028/0B2WA is a special quality version of the commercial 0B2 and the regulation is tighter at 3 volts. The CV1833 is the CV version of the 0B2.
The striking voltage for the 0B2WA is 133 volts.
The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 45 mm tall.
Reference: Datasheet. Type CV4028 was first introduced in 1955.

 

Pin Connections
B7G
1
2
3
4
5
6
7
a
k
ic
k
a
ic
k

 

Absolute Maximum Operating Conditions
Stabiliser
Va
mAa
108
30
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated November 19, 2016.
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