Svetlana Vacuum Tube
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- Pre-Owned · Svetlana$30.99or Best Offer$12.00 shipping11 watching
- New (Other) · Svetlana$45.00$16.00 shipping
- $330.4143 watching
- $171.77Only 2 left
- Brand New · Svetlana$21.00Free shipping
- $49.00or Best Offer
- Brand New · Svetlana$29.99or Best Offer$5.90 shipping20 sold
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- Pre-Owned · Svetlana$48.99or Best Offer$7.75 shipping
- $270.03$12.95 shipping4 watching
- New (Other) · Svetlana$13.51or Best Offer$9.19 shipping13 watching
- $290.37Only 1 left!
- New (Other) · Svetlana$53.99$10.80 shipping
- Brand New · Svetlana$215.00$17.20 shipping29 watching
- $37.77Trending at $93.80$3.95 shipping
- $86.17$7.95 shipping4 watching
- $47.76Free shipping62 sold
- Brand New · Svetlana$179.95$8.85 shipping
- Pre-Owned · Svetlana$34.45or Best Offer$9.95 shipping
- Pre-Owned · Svetlana$14.45or Best Offer$9.95 shipping
- Brand New · Svetlana$29.99or Best Offer$5.25 shipping
- New (Other) · Svetlana$32.00$11.00 shippingOnly 1 left!
- New (Other) · Svetlana$66.90Free shipping
- Brand New · Svetlana$229.08Was: $249.00was - US $249.00or Best OfferFree shipping
- Brand New · Svetlana$36.00$9.90 shipping
- $34.98Free shipping11 watching
- Brand New · Svetlana$5.50or Best Offer$9.00 shipping
- 📬Post offices works in Ukraine ✍️Feel free to write meNew (Other) · Svetlana$15.18or Best Offer$9.19 shippingOnly 2 left
- Brand New · Svetlana$54.99or Best Offer$5.90 shipping2 watching
- New (Other) · Svetlana$41.50or Best Offer$8.50 shippingOnly 1 left!
- Pre-Owned · Svetlana$32.50or Best Offer$8.35 shippingOnly 1 left!
- Pre-Owned · Svetlana$39.00$20.00 shippingOnly 1 left!
- New (Other) · Svetlana$16.00$9.00 shipping
- ✅ Approximate 6AQ5 Tube Equivalent⚡EL90 Tube AnalogueNew (Other) · Svetlana$15.25or Best Offer$9.19 shipping17 watching
- Brand New · Svetlana$18.00or Best Offer$15.00 shipping
- $19.98or Best Offer$9.99 shipping10 watching
- Brand New · Svetlana$110.00$9.80 shipping
- New (Other) · Svetlana$9.75or Best Offer$9.00 shipping
- Brand New · Svetlana$380.00$56.70 shipping
- Brand New · Svetlana$12.00$10.00 shipping
- 📬Post offices works in Ukraine ✍️Feel free to write meBrand New · Svetlana$4.72or Best Offer$9.19 shippingOnly 1 left!
- Brand New · Svetlana$48.45or Best Offer$9.95 shipping
- Pre-Owned · Svetlana$14.00or Best Offer$12.00 shipping
- New (Other) · Svetlana$10.00$10.00 shipping
- New (Other) · Svetlana$24.21Was: $26.90was - US $26.90Free shipping
- New (Other) · Svetlana$100.00$24.99 shipping
- New (Other) · Svetlana$26.99$10.80 shipping
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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.
What is a vacuum tube?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.
Are there varying sizes of vacuum tubes?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.
How does voltage affect the vacuum tube?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.
Are there other benefits other than sound amplification?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