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CV32 mercury vapour halfwave rectifier

866A size The valve measures 165x60mm overall. It has a 4-pin base.
Filament voltage 2.5V
Filament current 5.0A
Max working PIV 10.0kV
Max DC output current 250mA
Max temperature of condensed mercury 60C
Min temperature of condensed mercury 25C
Max frequency of supply 150Hz
Max peak anode current 1.0A
Min choke inductance at max DC output 5.0H

Note that the filament voltage must be applied at least 5 minutes before the anode voltage.

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