Tube-number record
4077-A
0 archive entries
4077-A is a tube type in the TubeDatabase archive (class: Mercury Vapour Rectifier). Recorded specifications: brand Standard, construction Rectifier, base Metal, and socket Screw / Edison base. The archive does not yet hold a photographed example of this type.
BrandStandard
ClassMercury Vapour Rectifier
BaseScrew / Edison base
Construction
Primary TypeRectifier
Rectifier TypeHalf wave
EnvelopeGlass
Base MaterialMetal
SectionsSingle
Filament / Heater
MaterialShielded, oxide coated
Application Notes
After shipment the filament must be run at full voltage for 30 minutes before any anode voltage is applied. The output circuit must be connected to the mid-point of the filament transformer. The anode and filament voltages should be 90 degrees out of phase (quadrature operation); if not possible, reduce maximum peak anode current and output current by 50%.
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