Tube-number record
EHA.2500
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BrandEDISWAN
ClassForced Air Cooled Triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeGlass/Metal Radiator
Sections1
Filament / Heater
MaterialTungsten (assumed)
Absolute Maximum Ratings
Plate Voltage7500 V
Plate Dissipation2500 W
Cathode Current4500 mA
Audio Performance
Key Features
- Forced Air Cooling
- Low Lead Inductance
- Special Anode Radiator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Amplifier / Oscillator | 7000 V | 5500 | 10000 | 55 | 400 mA |
Application Notes
The design minimises lead Inductance, particularly suitable for H.F. applications. Anode is fitted with a special radiator and cooling is obtained by forced air.
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