Item ST 32572 Electronic Valve - Marconi Osram, Dual Diode Type U78, 1950-1960

Summary

6.3 volt indirectly heated cathode, manufactured by MO Valve Company, England, 1950-1960. Full wave rectifier with an indirectly heated cathode with insulation capable of withstanding several hundred volts, removing the need for a separate filament supply. Equivalent to the 6X4

Physical Description

Tubular glass bulb, with exhaust tip and seven pin miniature base.