Z 863 X
0 Tubes in archive
BrandVEB WERK FÜR FERNSEHELEKTRONIK BERLIN
ClassCold Cathode Relay Tube
BaseSpecial / none
Construction
Primary TypeOther / special
EnvelopeGlass
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage270 V
Grid 1 Voltage155 V
Cathode Current40 mA
Audio Performance
Key Features
- Pure metal cathode
- Noble gas filled
- DC voltage operation
- Radioactive material for ignition stability
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Relay Operation | 220V | - | - | - | 20mA |
Application Notes
Used in relay and counting circuits. Designed for operation with negative starter electrode voltage (2nd quadrant ignition).
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