2C40-A
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BrandGeneral Electric
ClassPlanar Triode
BaseLighthouse
Filament6.3V @ 750mA
Construction
Primary TypeTriode
EnvelopeLighthouse
SectionsSingle
Filament / Heater
Heater NotesCoated Unipotential
Absolute Maximum Ratings
Plate Voltage500 V
Plate Dissipation6.5 W
Grid 1 Voltage-50 V
Cathode Current25 mA
H-C Voltage90 V
Audio Performance
Key Features
- Lighthouse construction
- Planar electrode arrangement
- Integral cathode RF bypass capacitor
- Low loss envelope
- Coaxial circuit compatible
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics | 250V | 5100 | - | 35 | 17mA |
| Radio-Frequency Oscillator | 250V | - | - | - | 20mA |
Application Notes
Designed for use as a CW oscillator, radio-frequency amplifier, or plate-pulsed oscillator at frequencies as high as 3370 megacycles.
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