4657
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BrandPhilips
ClassL.F. amplifier triode
Filament4V @ 1mA
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirect, A.C. or D.C., parallel supply
Absolute Maximum Ratings
Plate Voltage200 V
Plate Dissipation1.5 W
Grid 1 Voltage-1.3 V
Cathode Current15 mA
H-C Voltage50 V
Audio Performance
Key Features
- Indirect heating
- A.C. or D.C. supply
- Parallel supply
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| LF amplifier | 200V | 2200 | 45000 | 99 | 3mA |
Application Notes
Triode for use as Low Frequency amplifier.
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