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

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Z70U vacuum tube outline illustration

Tube-number record

Z70U

0 archive entries

Z70U is a tube type in the TubeDatabase archive (class: Trigger Tube). Recorded specifications: brand Philips, construction Other / special, base Glass, socket Subminiature, and maximum plate voltage 350 V. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassTrigger Tube
BaseSubminiature

Construction

Primary TypeOther / special
EnvelopeGlass
Base MaterialGlass
SectionsTriode

Filament / Heater

Absolute Maximum Ratings

Plate Voltage350 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Trigger Operation250 V———3 mA

Datasheets

Datasheet: Z70U.pdf

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

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    Grid 1 Voltage145 V
    Cathode Current12 mA

    Audio Performance

    Key Features
    • Gas-filled
    • Cold cathode
    • Subminiature
    • Decade counter application