Half-Wave Rectifier
The 3B28 Vacuum tube is a gasfilled Xenon Rectifier used
in Power-supplies. It was manufactured by many companies
including Chatham, Fivre, GE, Hytron, Marconi (I),
Philips, RCA, UE and Westinghouse.
Electrical Data:
Filament Voltage ......................... 2.5 V
Filament Current ......................... 5.0 A
Preferred Substitutes ............... CV1835,
DCX4/1000