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

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Z 564S vacuum tube outline illustration

Tube-number record

Z 564S

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Z 564S is a tube type in the TubeDatabase archive (class: Cold Cathode Decade Counter Tube). Recorded specifications: brand VEB Werk für Fernsehelektronik Berlin, construction Other / special, socket Special / none, and maximum plate voltage 450 V. The archive does not yet hold a photographed example of this type.

BrandVEB Werk für Fernsehelektronik Berlin
ClassCold Cathode Decade Counter Tube
BaseSpecial / none

Construction

Primary TypeOther / special
EnvelopeGlass
SectionsDecade Counter

Filament / Heater

Absolute Maximum Ratings

Plate Voltage450 V
Cathode Current0.9 mA

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Normal Counting450 V—300000—0.8 mA

Application Notes

Anode resistor Ra should be placed directly at the socket to avoid stray capacitances.

Datasheets

Datasheet: Z564S.pdf

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

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    Audio Performance

    Key Features
    • Noble gas filled
    • Forward and backward counting
    • Internal radioactive ring for stabilization
    • Reinmetallkatoden