Vaccum Tubes
For more than half a century, the vacuum tube had an enormous number of applications in research and communications. In the form of cathode-ray tubes, oscilloscopes,televisions, cameras, microwave tubes, radar, early space communication, and microwave ovens.
AIR COOLED TUBES
High-power amplifier tubes are designed with external anodes which can be cooled by convection
VACUUM TUBE 5868
The 5868 is a radiation cooled, medium power triode designed for use as an audio frequency power amplifier, grounded grid RF power amplifier and oscillator, or industrial oscillator. The 5868 is a radiation cooled, medium power triode designed for use as an audio frequency power amplifier, grounded grid RF power amplifier and oscillator, or industrial oscillator.
833A
The 833A is a vacuum tube constructed for medium power oscillator or class B or C amplifier applications. It is a medium-mu power triode with 300 watts CCS or 350 watts ICAS anode dissipation. The long grid and anode leads, plus high internal capacitance, limits this tube to 15-30 MHz maximum frequency. Being medium mu, it is normally not suitable for grounded grid operation.
7T62RB
They are high-power metal ceramic triodes, with their anodes cooled by air, and their maximum anode dissipation powers at 2kW; when at a frequency not higher than 500MHz, their output powers may attain to 4kW. They are mainly applied in industrial high-frequency heating equipments for oscillations or in radio equipments for amplifications.
7T69RB
Triode tube 7T69RB is a forced air cooled, ceramic/metal triode containing a thoriated tungsten cathode intended for use as an industrial oscillator. It is used in high frequency high power induction heating purposes like Plastic Welding, PVC Welding, Embossing etc.
7T85RB
It is a forced air cooled, ceramic metal triode containing a thoriated tungsten carbide cathode. It is used in HF induction heating applications like PVC welding, Embossing Machine, Plastic Welding etc.
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