DC90
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BrandPhilips
ClassVHF Triode
BaseMiniature
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
MaterialDirect
Absolute Maximum Ratings
Plate Voltage90 V
Plate Dissipation0.6 W
Cathode Current5.5 mA
Audio Performance
Key Features
- Directly heated filament
- Self-oscillating frequency changer
- VHF application
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| VHF Characteristic 1 | 40V | 900 | - | 11.1 | 1.5mA |
| VHF Characteristic 2 | 67.5V | 1200 | - | 11.6 | 4.2mA |
| VHF Characteristic 3 | 90V | 1100 | - | 11.5 | 3mA |
Application Notes
Used as self-oscillating frequency changer in FM battery receivers.
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