Tube-number record
131QP55
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BrandTESLA
ClassFlying spot scanner tube
BaseOctal
Filament6.3 V @ 600 mA
Construction
Primary TypeTetrode
EnvelopeGlass
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated, oxide cathode
Absolute Maximum Ratings
Plate Voltage30000 V
Grid 2 Voltage400 V
Grid 1 Voltage-125 V
Cathode Current0.05 mA
H-C Voltage125 V
Audio Performance
Key Features
- Electromagnetic deflection
- Electromagnetic focusing
- Metallized screen
- Planar screen
- Conductive external coating
- Tetrode without ion trap
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 25000 V | — | — | — | 0.05 mA |
Application Notes
Designed for image scanning from film or slides and special purposes requiring very short persistence.
Datasheets
Datasheet: 131QP55.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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