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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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711000 vacuum tube outline illustration

Tube-number record

711000

0 archive entries

711000 is a tube type in the TubeDatabase archive (class: Mercury Vapour Rectifier). Recorded specifications: brand Philips, construction Mercury Vapour, base Super Jumbo with bayonet, socket Jumbo, and maximum plate voltage 21000 V. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassMercury Vapour Rectifier
BaseJumbo

Construction

Primary TypeMercury Vapour
Rectifier TypeGrid-controlled
EnvelopeGlass
Base MaterialSuper Jumbo with bayonet
SectionsSingle

Filament / Heater

MaterialOxide-coated

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Arc Drop12 V———3000 mA

Application Notes

After transport or long interruption, a 60-minute preheating time is required to ensure proper mercury distribution. Phase shift of 90 degrees recommended between anode and filament voltage.

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Manufacturers

Brands

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    Warm-up Time90s

    Absolute Maximum Ratings

    Plate Voltage21000 V
    Grid 1 Voltage-300 V
    Cathode Current5000 mA

    Audio Performance

    Key Features
    • Grid-controlled
    • Direct heating
    • Mercury vapour filling
    • Vertical mounting position