Tube-number record
EL803
0 archive entries
BrandTelefunken
ClassWide-band Power Pentode
BaseNoval (B9A)
Filament6.3 V @ 650 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated, parallel connection
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation9 W
Grid 2 Voltage250 V
Cathode Current70 mA
H-C Voltage120 V
Audio Performance
Key Features
- Wide-band power pentode
- Indirectly heated
- Parallel heating
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation 1 | 170 V | 10500 | 60000 | 22 | 36 mA |
| Typical Operation 2 | 200 V | 10500 | 60000 | 22 | 36 mA |
Application Notes
Free pins must not be used as support points for wiring. Special precautions must be taken to prevent the tube from becoming dislodged.
Datasheets
Datasheet: EL803.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results