Tube-number record
3CX2500H3
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BrandEIMAC
ClassPower Triode
BaseFlexible / flying leads
Construction
Primary TypeTriode
EnvelopeCeramic/Metal
Base MaterialMetal
SectionsSingle
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage6000 V
Plate Dissipation2500 W
Grid 1 Voltage-1000 V
Cathode Current2500 mA
Audio Performance
Key Features
- Ceramic/Metal Construction
- Forced-Air Cooled
- External Anode
- Thoriated Tungsten Filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C RF Oscillator (Filtered DC) | 4000 V | — | 910 | 20 | 2500 mA |
| Class C RF Oscillator (Filtered DC) | 6000 V | — | 1625 | 20 | 2080 mA |
Application Notes
Primarily for industrial radio-frequency heating services. Vertical mounting required (base up or down). Additional stem cooling air must be provided (14 CFM recommended).
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