833C
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BrandRichardson Electronics
ClassTriode
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage4000 V
Plate Dissipation450 W
Grid 1 Voltage-500 V
Cathode Current500 mA
Audio Performance
Power Output2700 W
Key Features
- Thoriated Tungsten Filament
- AF Power Amplifier and Modulator
- RF Power Amplifier
- Class B/C Service
- High power output up to 2700W
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| AF POWER AMPLIFIER AND MODULATOR-CLASS B (Radiation CCS) | 3000V | - | 9500 | 35 | 750mA |
| RF POWER AMPLIFIER - CLASS B TELEPHONY (Forced-air CCS) | 4000V | - | - | - | 150mA |
| RF POWER AMPLIFIER - CLASS C TELEGRAPHY (Forced-air CCS) | 4000V | - | 2650 | - | 450mA |
Application Notes
The 833C is a triode especially designed for RF power amplifier applications, as well as audio frequency power amplifier and modulator service. Maximum ratings apply up to 30 MHz, and reduced ratings up to 75 MHz.
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