Svetlana Vacuum Tube

What You Need to Know About Svetlana Vacuum Tubes

Whether used in an amplifier or within the circuitry of a soundboard, Svetlana tubes have already proven that they are reliable assets to any committed audiophile. The simple engineering behind the thermionic emission of the vacuum tube allows for larger modifications to power without worry of system failure. In selecting a vacuum tube from Svetlana, it would be helpful to understand more about how a vacuum tube works.

A vacuum tube contains a cathode that is heated by separate filaments. When the cathode is heated, it will release a cloud of negatively charged electrons that will attach to a plate housed above the cathode. The resulting 'vacuum' allows for high power outputs at lower power consumption. In essence, a vacuum amplifies electrical power. In order from bottom to top, here are the parts that comprise a vacuum tube:

• Filament
• Cathode
• Grid
• Plate
• Envelope

Vacuum tubes were initially used in microwaves and radios. When the cathode passes its negatively charged electrons to the plate, the plate is heated and thermionic emission occurs. The tube surpasses the transistor in its ability to effectively 'burn off' electrons, thus saving it from overheating, while retaining the same amplification properties. This allows more deliberate changes in power without the fear of failure.

Svetlana vacuum tubes come in an array of sizes and variations. The construct of the valve largely depends on the purpose of the electronic device. A tube for a microphone amplifier may have a different structure from that of a tube designed for a microwave. Sizes are typically indicated by a series of numbers and letters. Refer to manufacturer guidelines to assist with model selection.

While transistors operate at lower voltages, a tube actually requires higher voltages to operate effectively. This is what makes them more forgiving, while also allowing for larger battery supplies. The vacuum effect of tubes allows them to burn off some excess electrons. The amplifier is then able to pull more power and thus amplify to a greater degree.

Yes, vacuum tubes offer more longevity due to their ability to absorb heat and burn off excess energy. Tubes are also more linear than transistors, providing more direct power to their attached components. This also makes tubes from Svetlana more compatible with a wider array of electronic platforms. Other advantages include:

• Simple circuit designs
• Easily replaced
• Uniform operation over Class A and Class AB
• Protects other electronics from overload by burning off excess electrons
• Offers more customization with other devices