C 509
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BrandPhilips
ClassTriode Receiving Lamp
BaseAmerican G 34 or A 34
Construction
Primary Typetriode
EnvelopeGlass
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage120 V
Cathode Current10 mA
Audio Performance
Key Features
- Universal lamp for American sets
- Low distortion
- High power capacity
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| LF Amplifier @ 60V Va | 60V | 1000 | 9000 | 9 | - |
| LF Amplifier @ 80V Va | 80V | 1000 | 9000 | 9 | - |
| LF Amplifier @ 100V Va | 100V | 1000 | 9000 | 9 | - |
| LF Amplifier @ 120V Va | 120V | 1000 | 9000 | 9 | - |
Application Notes
Can be used as a detector, high-frequency amplifier, or low-frequency amplifier. When using a 6V battery, a series resistance of at least 12 Ohms is required. Anode voltage for detector use: 20-60V.
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