Tube-number record
T979H
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BrandEnglish Electric Valve Co. Ltd.
ClassOscilloscope Cathode Ray Tube
BaseCRT / special base
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialPlastic
SectionsSingle beam
Filament / Heater
Heater NotesIndirectly heated, parallel operation only
Absolute Maximum Ratings
Plate Voltage15000 V
Grid 2 Voltage3300 V
Grid 1 Voltage-200 V
Cathode Current0.3 mA
H-C Voltage200 V
Audio Performance
Key Features
- Post deflection accelerator mesh
- Internal spiral coating
- Aluminised screen
- High writing speed
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| PDA Ratio 8:1 | 12000 V | — | — | — | — |
Application Notes
Specifically suitable for use with deflection circuits employing transistors.
Datasheets
Datasheet: T979H.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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