Tube-number record
8434
0 archive entries
8434 is a tube type in the TubeDatabase archive (class: Hydrogen Diode Rectifier). Recorded specifications: brand Tung-Sol, year 1963, construction Diode, base Metal, socket 4-pin, and maximum plate voltage 20000 V. The archive does not yet hold a photographed example of this type.
BrandTung-Sol
ClassHydrogen Diode Rectifier
Base4-pin
Filament5 V @ 11500 mA
Construction
Primary TypeDiode
Rectifier TypeGas-filled (Hydrogen)
EnvelopeGlass
Base MaterialMetal
SectionsSingle
Filament / Heater
Heater NotesBogey values provided.
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier | 20000 V | — | — | — | 1800 mA |
Application Notes
The 8434 is designed for high voltage rectifier circuits. It acts as a direct plug-in replacement for mercury-vapor types 6894 and 575A. Unlike mercury tubes, it is not subject to splash problems and does not require long warmup times.
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