ECL85
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BrandPHILIPS
ClassTriode-Pentode
BaseNOVAL
Filament6.3V @ 0.9mA
Construction
Primary TypeTriode-Pentode
EnvelopeGlass
Sections2
Filament / Heater
Heater NotesIndirect heating by A.C. or D.C.; Parallel supply
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation7 W
Grid 2 Voltage250 V
Grid 1 Voltage-100 V
Cathode Current75 mA
H-C Voltage100 V
Audio Performance
Key Features
- Frame output tube
- Frame oscillator
- Pulse amplifier
- Television receiver application
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode section (Pulse) | 50V | - | - | - | 200mA |
| Pentode section (Pulse Alternative) | 65V | - | - | - | 285mA |
| Triode section | 100V | 5500 | 9000 | 50 | 10mA |
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