PE 05/25
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BrandPHILIPS
ClassPENTODE
Base40210/02
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect heating
Absolute Maximum Ratings
Plate Voltage500 V
Plate Dissipation12 W
Grid 2 Voltage300 V
Cathode Current130 mA
H-C Voltage75 V
Audio Performance
Typical THD5%
Power Output49 W
Key Features
- Oxide-coated cathode
- Indirectly heated
- Arbitrary mounting position
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. class C telegraphy | 500V | 3300 | - | 7.6 | 90mA |
| H.F. class B telephony | 500V | - | - | - | 36mA |
| L.F. class B amplifier (two valves) | 500V | - | - | - | 36mA |
Application Notes
For use as H.F. and L.F. amplifier and oscillator.
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