Tube-number record
DCG 5/30-I
0 archive entries
DCG 5/30-I is a tube type in the TubeDatabase archive (class: Mercury Vapor Rectifier). Recorded specifications: brand Philips, construction Mercury Vapor, base Chrome-iron connection, socket Special / none, and maximum plate voltage 12000 V. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassMercury Vapor Rectifier
BaseSpecial / none
Filament5 V @ 30 mA
Construction
Primary TypeMercury Vapor
Rectifier TypeHalf-wave
EnvelopeGlass
Base MaterialChrome-iron connection
Sections1
Filament / Heater
Heater NotesIndirectly heated oxide cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Circuit Abb. 1 | 4200 V | — | — | — | 12000 mA |
| Circuit Abb. 5 | 8400 V | — | — | — | 18000 mA |
Application Notes
Specifically designed for use in transmitters and similar high-power installations. Requires auxiliary voltage for ignition at the chrome-iron connection.
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