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NU3 / U14 fullwave rectifier

Size This valve measures 114x43mm overall and has a B4 base.


Filament voltage 4V
Filament current 2.5A
Max applied RMS voltage 500V
Max working PIV 1350V
Max no load PIV 1500V
Max mean DC rectified current 120mA
Max peak anode current 400mA
Max reservoir capacitor 16µF
Max limiting resistance per anode 150 ohms


Pin Function
1 Anode
2 Anode
3 Filament
4 Filament


U14 label

This file was last modified 15:48:57, Tuesday September 02, 2014