Tube-number record
PC 05/15
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BrandPHILIPS
ClassPentode
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialOxide
Absolute Maximum Ratings
Plate Voltage500 V
Plate Dissipation15 W
Grid 2 Voltage300 V
Cathode Current65 mA
Audio Performance
Power Output20 W
Key Features
- Directly heated oxide cathode
- H.F. amplifier
- Screen-grid modulation capable
- Suppressor-grid modulation capable
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. class C, telegraphy | 500 V | 1250 | — | — | 65 mA |
| H.F. class B, telephony | 500 V | — | — | — | 30 mA |
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