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With the decline of Soviet communism and the growth of the Chinese economy in the 1990s, it emerged from the shadows and provided products for the audio market.
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It survived the decline of Russia, China, and the former communist countries of Eastern Europe in the 1970s. Upon further investigation, we found that there is no such type of pipe manufacturing in America and Western Europe. Obviously, this is a business with a large price increase, and the rest of the world's steel pipe mills are making money. Today's price is about £9.96 (approximately US$12.27), so Hyundai's reissue price is more than three times the original price in its heyday. We found the same part number that advertises 8 shillings and thrift, that is, the price of this part number is £0.41 ($0.51) in British currency after decimal digitization. These are mainly audio amplifier components, dual triodes, output pentodes, and even occasional power rectifiers, and they are expensive and may surprise original buyers.įor example, the Mullard brand ECC83 (12AX7) general purpose small-signal dual triode made by Electric Looking at the available tubes, it is clear that if you are looking for the humble 1050s small signal RF tube, you will be unfortunate.
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The answer is that by 2020, the consumer electronic tube business will no longer be a commodity parts market, it will be the lifeblood of one million TV sets and radios, but a boutique serving niche markets. Obviously, there are few test tube factories left in the world as many logos printed on imported test tube glass, so what is going on? , And ultra-high power industrial equipment that uses vacuum and gas-filled tubes for control or rectification.īut who is making "ordinary" tubes-smaller glass enveloped tubes, small triodes and pentodes? We recognize some past names, such asīrand, others are obviously Russian or Chinese names, for example Similarly, there are still dedicated RF applications still in use Or a slightly faster exotic fare, such as klystron. In industrial applications, vacuum equipment is still closely related to us, although in many cases, their semiconductor devices will be tightly broken.įor example, high-power RF amplifiers for UHF and higher frequencies still use vacuum tubes because they There are so many steel pipe brands on the market, where are they manufactured, and how have their manufacturers survived for so long? The answer is relatively simple, but in other respects it is a maze of complexity.Īlthough the vacuum tubes of decades ago may have disappeared from ordinary electronic products, it is worth pointing out that many old names in the vacuum tube industry did not stop manufacturing vacuum tubes, but just stopped manufacturing vacuum tubes that you may be familiar with. However, this does raise an interesting question. Various brands of electronic tubes can be purchased at dizzying prices, which is a pleasant surprise for a technology that may be thought to have disappeared 40 years ago.
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High-end high-fidelity stores are full of tube-based devices, and electronic enthusiasts can also use a large number of tube amplifier kits. In particular, the audio world has begun to chase the elusive "tube sound", whether it's a deliberately overdriven amplifier for guitarists or a perfect amplifier for audiophiles. If you made a tube amplifier in the early 1990s, it would be a big anomaly.Īs the composition of our consumer electronics products becomes more and more digital, there is growing interest in analog devices, or at least devices with obvious analog components. Consumer products no longer contain these products, and an entire generation of engineers has never worked with them. As cheaper, more general-purpose semiconductors replaced them, they faded from the electronic parts catalog, and the industry that once produced them in such quantities disappeared in favor of factories that produced new devices. Until the 1960s, these electrodes were ubiquitous in consumer electronics and even popular in some mass market applications. The electrical properties of a group of electrodes in a vacuum glass enclosure depend on the modulation of the electron flow through them. Instead, a very different type of electronic component dominates the vacuum tube. However, in the first sixty years or so of the current field, these devices have either not been invented or are in the early stages of development, so that they are not cost-effective or widely used. Transistors, integrated circuits, microcontrollers. For most of us, electronic technology takes the form of solid-state devices.