3CX2500F3
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BrandEIMAC
ClassTransmitting Triode
BaseFlexible filament and grid leads
Construction
Primary TypeMedium-mu Triode
EnvelopeCeramic and Metal
Base MaterialMetal
Sections1
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage6000 V
Plate Dissipation2500 W
Cathode Current2500 mA
Audio Performance
Power Output13000 W
Key Features
- Forced-air cooled
- External anode
- All ceramic and metal construction
- Flexible leads
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Power Amplifier or Oscillator | 4000V | 20000 | - | 22.5 | 2500mA |
| RF Power Amplifier or Oscillator | 5000V | 20000 | - | 22.5 | 2500mA |
| RF Power Amplifier or Oscillator | 6000V | 20000 | - | 22.5 | 2080mA |
| Plate-Modulated RF Power Amplifier | 4000V | - | - | - | 1670mA |
| Plate-Modulated RF Power Amplifier | 5000V | - |
Application Notes
The 3CX2500F3 is designed for use as an amplifier, oscillator, or modulator at frequencies below 30 MHz. It provides a greater margin of safety for operating temperatures compared to glass equivalents.
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