Tube-number record
30C12
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BrandMAZDA
ClassCathode Ray Tube
BaseCRT base (B12 family)
Filament4 V @ 720 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialPlastic
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage4000 V
Grid 2 Voltage1000 V
Grid 1 Voltage-500 V
Audio Performance
Key Features
- Precision constructed instrument
- Bearing error not exceeding +/- 1 degree
- Centre cross and mark provided
- Suitable for Pulse D.F. systems
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Normal Operation | 2200 V | — | — | — | — |
Application Notes
The tube is suitable for use in 'Pulse D.F.' systems and may be supplied with any standard phosphor screens. Anode 2 voltage for focus decreases with increase of beam current.
Datasheets
Datasheet: 30C12.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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