Tube-number record
A 63-120 X
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BrandTelefunken
ClassColour TV picture tube
BaseCRT base (B12 family)
Filament6.3 V @ 900 mA
Construction
Primary TypeDisplay / CRT
EnvelopeAll-glass
Base MaterialGlass
Sections3 electron beams
Filament / Heater
Heater NotesFilament voltage should be stabilized for optimum cathode life.
Absolute Maximum Ratings
Plate Voltage27500 V
Grid 2 Voltage1000 V
Cathode Current1 mA
H-C Voltage250 V
Audio Performance
Key Features
- Aluminized screen
- Electrostatic focusing
- Magnetic deflection
- Magnetic lateral and radial beam convergence
- Metal shielding
- Push-through arrangement
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation (per gun) | 25000 V | — | — | — | — |
Application Notes
The tube may be used without safety plate. Internal arcs may occur; spark gaps should be provided to prevent damage.
Datasheets
Datasheet: A63-120X.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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