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Description
ECC83 12AX7 EI Yugoslavia Telefunken Long Smooth Plates 17mm NOS Matched PairTwo (2) fully tested NOS tubes, platinum matched pair of rare ECC83 12AX7 EI made in Yugoslavia on geniuine Telefunken made tooling machines . They are real vintage NOS tubes in original boxes made back in late 80s early 90s in EI tube factory in Nis, Serbia. (Elektronska Industrija Nis) If you like sound of Telefunken's smooth plates ECC83 12AX7, you'll like these too, because they are (almost) exact copy. The only differences are in thickness of
Two (2) fully tested NOS tubes, platinum matched pair of rare ECC83 12AX7 EI made in Yugoslavia on geniuine Telefunken made tooling machines .They are real vintage NOS tubes in original boxes made back in late 80s - early 90s in EI tube factory in Nis, Serbia. (Elektronska Industrija Nis)
If you like sound of Telefunken's smooth plates ECC83 12AX7, you'll like these too, because they are (almost) exact copy. The only differences are in thickness of halo getter and in "staples" which are facing each other.
I have few 100 pcs boxes of these tubes and I had enough time last few months to carefully measure them on my Metrix and Tesla tube testers for plate currents and Hickok for transconductance and to make platinum matched pairs with balanced triode sections.
You can find them rebranded Telefunken, Philips and Siemens, because all three factories had contracts with EI. These are pre war tubes, with exceptional quality, made with 1st class materials, because of that many of them have been rebranded like long life premium versions E83CC and sold by Siemens and Philips in their boxes.
You can also find them relabeled Telefunken with diamond mark on the bottom last few years! Diamond bottom mark is done on laser machine, and if you want to avoid that and to be sure that you are buying genuine Telefunken ECC83 12AX7, just take a look at getter and how staples are faced. Diamond bottom is not proof any more ...
If you want to know more about Telefunken ECC83 12AX7 and different types of smooth plate and ribbed plate versions you should read this article on my site: www.tubes.rs/ecc83-telefunken-12ax7/
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4.6 ★★★★★
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Product Reviews
★★★★★ 5
Perfect for me and my kids
KOORUI 27 Inch Curved Monitor and I am extremely satisfied with its performance. This monitor is perfect for both gaming and desktop use, delivering an immersive and visually stunning experience.
First and foremost, the 27-inch curved display is a game-changer. The curved design enhances the viewing experience, making it feel more engaging and immersive. Whether I'm gaming or working on desktop tasks, the curved screen pulls me into the action and provides a wider field of view.
The FHD 1080P resolution ensures crisp and clear visuals, allowing me to enjoy games and media with stunning detail. The colors are vibrant and accurate, and the overall picture quality is impressive. I can easily spot even the smallest details in games, giving me a competitive edge.
With a 75Hz refresh rate, the monitor delivers smooth and fluid visuals, minimizing motion blur and ensuring an enjoyable gaming experience. Whether I'm playing fast-paced action games or watching videos, the smoothness of the display adds to the overall immersion.
The monitor offers multiple connectivity options, including HDMI and VGA, allowing for easy connection to various devices. I appreciate the flexibility this provides, as I can connect my gaming console, PC, or other devices without any hassle.
One feature that I particularly value is the tilt adjustability. The ability to tilt the monitor allows me to find the perfect viewing angle for maximum comfort, reducing strain on my neck and eyes during long gaming or work sessions.
Another important aspect of this monitor is the eye care technology. The 1800R curvature and eye care features help reduce eye strain and fatigue, even during extended usage. This is a crucial consideration for me, as I spend a significant amount of time in front of the screen.
The sleek black design of the monitor adds a touch of elegance to my setup. It blends seamlessly with my gaming or office environment and enhances the overall aesthetics.
In terms of value for money, the KOORUI 27 Inch Curved Monitor is an excellent choice. It offers a combination of immersive visuals, smooth performance, and eye care features at an affordable price point.
Overall, I highly recommend the KOORUI 27 Inch Curved Monitor for both gaming and desktop use. Its curved display, FHD resolution, smooth refresh rate, and eye care features make it a standout choice. Whether you're a gamer or someone who spends hours working on a desktop, this monitor will undoubtedly enhance your experience."
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Reviewed in the United States on July 18, 2024
★★★★★ 5
I like
Large, tilt. I like. Just does raise up. Goes good with my stand up desk.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Excent price / quality relation
I had some good expectations about this screen and they were accomplished. The quality is good, it has few modes in its configuration for eye saving or performance.
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Reviewed in the United States on June 3, 2024
★★★★★ 4
It's alright
Performs well on high graphics for gaming. My only complaint is that this has a lot of backlighting. The screen is very bright and not very saturated. I also don't like that you can't adjust the screen height. But other than that, a decent curved monitor.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Game changer! Literally
I use this monitor for work and I don’t need to turn my face to see the edge of the screen. Absolutely love it! Bright enough but not too much to bother my sight! Nice color, monitor not too heavy but still good quality. Lots of value in this purchase! Highly recommend to my colleagues and friends!
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Reviewed in the United States on May 27, 2025