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RS PRO Pentode Thermionic Valve, Octal Base, 23W, 6.3V, 38.5 (Dia.) x 115mm Model No 6784108
by RS PRO
Features |
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Brand Name : | RS PRO |
Type of Product : | Pentode Thermionic Valve |
Model No : | 6784108 |
Country of Origin : | United Kingdom |
Body Length : | 98 mm |
Voltage Output : | 400V |
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RS PRO Pentode Thermionic Valve, Octal Base, 23W, 6.3V, 38.5 (Dia.) x 115mm Model No 6784108 is a type of electron tube that contains five elements or electrodes: the cathode, control grid, screen grid, suppressor grid, and anode (plate). The cathode is heated to emit electrons, while the control grid is used to modulate the flow of electrons from the cathode to the anode. The screen grid helps improve the efficiency of the tube, and the suppressor grid helps reduce secondary electron emission from the anode, improving the stability of the tube's characteristics.
When a voltage is applied to the control grid, it controls the flow of electrons from the cathode to the anode, acting as an amplifier. The pentode tube's design allows it to achieve higher gain and greater amplification compared to earlier triode tubes, making it suitable for various electronic applications.
The pentode thermionic valve found widespread use in early radio receivers, audio amplifiers, and other electronic devices during the mid-20th century. Its ability to amplify signals effectively and provide higher output power made it a critical component in the development of telecommunications, broadcasting, and audio equipment.
However, pentode tubes had certain drawbacks, including susceptibility to microphonics (mechanical vibration affecting electronic performance) and higher levels of distortion compared to other tube types. As a result, they were gradually replaced by transistors and other solid-state devices in most modern electronic applications.
Despite being largely obsolete in modern electronics, pentode thermionic valves continue to be used in niche applications, such as in high-power audio amplifiers, guitar amplifiers, and some audiophile equipment. They also hold historical significance in the development of electronic technology and remain of interest to vintage electronics enthusiasts and audiophiles who appreciate their unique sound characteristics.
In summary, a pentode thermionic valve is an early electronic device that utilizes five elements to amplify electronic signals. While largely replaced by solid-state transistors in modern electronics, pentode tubes played a crucial role in the development of early electronic technology and continue to be used in niche applications and appreciated by vintage electronics enthusiasts.
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2,799
(GST inclusive price)
2,372
(GST extra)
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