Tube-number record
Z 564S
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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
Audio Performance
Key Features
- Noble gas filled
- Forward and backward counting
- Internal radioactive ring for stabilization
- Reinmetallkatoden
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Normal Counting | 450 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
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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