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Tube-number record
ECC803
1 archive entry
BrandJJ Electronic
ClassA. F. twin triode
BaseNoval (B9A)
Filament6.3 V @ 300 mA
Construction
Primary TypeTriode
Envelopeglass
Sectionstwin
Filament / Heater
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation1.2 W
Grid 1 Voltage-55 V
Cathode Current9 mA
H-C Voltage200 V
Audio Performance
Key Features
- separate cathodes
- non microphonic
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical characteristic | 250 V | 1600 | 62500 | 100 | 1.2 mA |
Application Notes
Resistance - coupled amplifier operation: Ub=250V, Ra values 47k, 100k, 220k.
Datasheets
Datasheet: ECC803.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.