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BrandPhilips
ClassDisc seal triode for decimetric waves
BaseDisc seal
Filament6.3V @ 400mA
Construction
Primary Typetriode
EnvelopeMetal/Glass Disc Seal
Base MaterialMetal
Sectionssingle
Filament / Heater
Heater NotesCoated unipotential cathode
Absolute Maximum Ratings
Plate Voltage350 V
Plate Dissipation10 W
Cathode Current40 mA
Audio Performance
Key Features
- Disc seal construction
- Decimetric wave operation
- High transconductance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Characteristic | 250V | 6000 | - | 30 | 20mA |
Application Notes
In order to limit the plate seal temperature and also to limit the rate of change of plate seal temperature, it is necessary for the mass of metal in close thermal contact with the plate disc to be not less than 60 grams (2 oz.) of brass or its equivalent.
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