EL803
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BrandTelefunken
ClassWide-band Power Pentode
BaseNoval
Filament6.3V @ 650mA
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 | 170V | 10500 | 60000 | 22 | 36mA |
| Typical Operation 2 | 200V | 10500 | 60000 | 22 | 36mA |
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.
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