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Tube Database (7,341 tube types · 1,270 archive entries)

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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DCG 7/100 vacuum tube outline illustration

Tube-number record

DCG 7/100

0 archive entries

DCG 7/100 is a tube type in the TubeDatabase archive (class: Grid-controlled Mercury Vapour Rectifier). Recorded specifications: brand Philips, construction Rectifier, base Metal/Ceramic, socket Special / none, and maximum plate voltage 15000 V. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassGrid-controlled Mercury Vapour Rectifier
BaseSpecial / none
Filament5 V @ 20000 mA

Construction

Primary TypeRectifier
Rectifier TypeMercury Vapour
EnvelopeGlass
Base MaterialMetal/Ceramic
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated, cathode connected to filament; Preheating time min. 10 minutes.

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Rectifier arc drop12 V———15000 mA

Application Notes

After transport or long interruption, 45 minutes preheating is required for proper mercury distribution. Preheating of anode at max 500V required if switching after 10 mins heater on.

Filters

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Manufacturers

Brands

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    Absolute Maximum Ratings

    Plate Voltage15000 V
    Grid 1 Voltage600 V
    Cathode Current10000 mA

    Audio Performance

    Key Features
    • Oxide-coated cathode
    • Mercury vapour filling
    • Grid control for regulated output
    • High voltage capability