2-240A
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BrandEimac
ClassHigh Vacuum Diode Rectifier
Base50-watt jumbo 4-pin bayonet
Construction
Primary Typediode
Rectifier Typevacuum
Envelopeglass
Sections1
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage25000 V
Plate Dissipation150 W
Cathode Current500 mA
Audio Performance
Key Features
- Convection and radiation cooling
- High peak inverse voltage rating
- Thoriated tungsten filament
- Suitable for high-frequency transients
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Single-phase, Half-Wave (Capacitor-Input) | 10000V | - | - | - | 320mA |
| Single-phase, Full-Wave (Capacitor-Input) | 10000V | - | - | - | 640mA |
| Single-phase, Full-Wave (Choke-Input) | 8000V | - | - | - | 1000mA |
| Single-phase, Bridge (Choke-Input) | 16000V | - | - | - | 1000mA |
Application Notes
The 2-240A must be mounted vertically with the base either down or up. Clearance should be provided around the glass envelope for free circulation of air. An Eimac HR-6 heat dissipating connector is recommended for the plate terminal.
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