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GU50 / VU72 / CV1072 / 10E/11530 mercury vapour rectifier.

Filament voltage 4V
Filament current 3A
Max working PIV 4.2kV
Max DC output current 250mA
Max temp of condensed mercury 60C
Min temp of condensed mercury 25C
Max frequency of supply 150Hz
Max peak anode current 1A
Min choke inductance at max output current 4.5H

 

Pin Function
1 n/c
2 n/c
3 Filament
4 Filament
TC Anode

The valve measures 140x48mm overall.

 GU50
  GU50
CV1072 VU72