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

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6578 vacuum tube outline illustration

Tube-number record

6578

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6578 is a tube type in the TubeDatabase archive (class: Ionization Gauge Tube). Recorded specifications: brand Vacuum Tube Products, construction Other / special, base Ceramic RETMA A7.14, socket Special / none, and maximum plate voltage 500 V. The archive does not yet hold a photographed example of this type.

BrandVacuum Tube Products
ClassIonization Gauge Tube
BaseSpecial / none

Construction

Primary TypeOther / special
EnvelopeCeramic
Base MaterialCeramic RETMA A7.14
SectionsTriode-like (Grid/Collector)

Filament / Heater

MaterialPure Metal

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Ionization Gauge Operation150 V———5 mA

Application Notes

Used for measuring vacuum in large metal systems. Filaments should be used individually for maximum life. Grid outgassing may be done while the tube is in operation.

Datasheets

Datasheet: 6578.pdf

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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    Plate Voltage500 V
    Grid 1 Voltage-500 V
    Cathode Current15 mA

    Audio Performance

    Key Features
    • Three separately connected filaments
    • Provision for outgassing the grid by direct heating
    • Reliable measurement of low pressures
    • Collector is physically small to minimize bombardment release errors