Virtual Valve Museum

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CV4048 reliable voltage reference

Size This valve measures 51x17mm overall and has a B7G base.


The equivalent fly-lead valve is CV4054. CV4118 is a version with gold plated pins.

Min supply voltage 115V
Nominal stabilised voltage 85V
Recommended operating current 6mA
Max cathode current 10mA
Min cathode current 1mA
Max starting current 40mA
Max acceleration (continuous operation) 2.5g
Max shock (short duration) 500g
Max operating bulb temperature 90C
Max ambient storage temperature 70C
Min ambient temperature -55C


Pin Function
1 Anode
2 Cathode
3 i/c
4 Cathode
5 Anode
6 i/c
7 Cathode