Tube-number record
50DC4
0 archive entries
50DC4 is a tube type in the TubeDatabase archive (class: Half-wave Power Rectifier). Recorded specifications: brand General Electric, year 1958, construction Diode, base Glass, socket Miniature 7-pin (B7G), and maximum plate voltage 330 V. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassHalf-wave Power Rectifier
BaseMiniature 7-pin (B7G)
Filament50 V @ 150 mA
Construction
Primary TypeDiode
Rectifier TypeHalf-wave
EnvelopeT-5 1/2 Glass
Base MaterialGlass
Sections1
Filament / Heater
Heater NotesHeater is tapped at 7.5V to permit operation of a panel lamp. Tapped voltage is 5.5V when using panel lamp 40 or 47.
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Half-wave Rectifier without Panel Lamp | 117 V | — | — | — | 110 mA |
| Half-wave Rectifier with Panel Lamp 40 or 47 | 117 V | — | — | — | 70 mA |
Application Notes
The 50DC4 is a miniature half-wave rectifier designed for use in line-operated equipment having series-connected heaters. The heater is tapped to permit operation of a panel lamp. Maximum DC output current depends on use of shunting resistors with panel lamps.
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