Rectifier tube for Vox AC30, Fender Deluxe Reverb and Marshall JTM45
Rectifier tube for Mesa Double/Triple Rectos, VHT CL50
The Sovtek 5U4G is a directly heated diode designed to rectify alternating voltage in general-purpose radio equipment. The Sovtek 5U4G has a maximum output of 250 mA, filament voltage of 5 V and filament current is 3 mA +/- 0.3 mA.
Rectifier tube for small amps (Fender Champ family)
An indirectly heated diode intended for rectification of commercial-frequency alternating current. It has a 140 mA maximum output and filament voltage of 5 V and a filament current of 2 mA +/- 0.2 mA.