Tube-number record
R 147
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BrandLa Radiotechnique
ClassPower Pentode
BaseSpecial / none
Filament18 V @ 0.14 mA
Construction
Primary TypePentode
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirect (cathode isolée du filament)
Absolute Maximum Ratings
Plate Voltage225 V
Plate Dissipation4 W
Grid 2 Voltage225 V
Cathode Current28 mA
H-C Voltage70 V
Audio Performance
Typical THD6%
Power Output1 W
Key Features
- Long Life (Longue Durée)
- Indirect Heating
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 200 V | 6000 | 140000 | 840 | 18 mA |
Application Notes
A utiliser de préférence en polarisation automatique ou semi-automatique.
Datasheets
Datasheet: R147.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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