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Description
EL509 EL519 6KG6 EI Yugoslavia Philips Triple Mica NOS PLATINUM QUAD EAR859For sale is one perfectly matched quad (4 tubes) of genuine EL509 EL519 6KG6A made by EI Nis Yugoslavia under Philips licence in 1978, ADW codes. EL509 printed on each tube, but they have genuine ADW etched code and they are EL519 indeed. These tubes are specially selected for export without EI logo printed on each tube, you could see them rebranded Philips, Telefunken, Valvo, Tesla, RSD, Tungsram or Siemens They are from service packagings of 50 pcs
For sale is one perfectly matched quad (4 tubes) of genuine EL509 / EL519 / 6KG6A made by EI Nis Yugoslavia under Philips licence in 1978, ADW codes.
EL509 printed on each tube, but they have genuine ADW etched code and they are EL519 indeed.
These tubes are specially selected for export without EI logo printed on each tube, you could see them rebranded Philips, Telefunken, Valvo, Tesla, RSD, Tungsram or Siemens
They are from service packagings of 50 pcs in original individual boxes for every single tube. All four tubes are matched within 5% (platinum pair). True triple mica version (early Philips construction, much much better than later dual mica versions).
They are the same dates and exactly the same batch! Why this is so important?!? Because EI has bought materials from few suppliers and it could happen that you can find the same construction type, visually identical, but made from different materials. Those tubes will not change characteristics in the same way in your amplifier like ones from the same batch. These ones will be platinum quad for years ...
These tubes are perfect replacement tubes for EAR861 / EAR859 amplifiers.
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4.2 ★★★★★
Based on 1847 reviews
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Product Reviews
★★★★★ 5
Quality Watch
Color: 5566-ZP-white face
A very nice looking inexpensive watch for work if you are in a job that you don't want to wear an expensive watch.
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Reviewed in the United States on January 15, 2026
★★★★★ 4
As Advertised
Color: 5535-HP-white
The watch is what I expected, and works upon receipt as advertised. At this price, if it only works for 4-6 months it's easily worth the money. Large, nice looking face, day/date. Wristband is what you'd expect, but adequate and comfortable.
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Reviewed in the United States on December 25, 2023
★★★★★ 3
Dies after a Year
Color: 5566-ZP-white face
Watch worked fine for about a year, then just stopped working - just like that. No amount of shaking or gentle impacts would get it to start ticking again.
I'd also say my biggist issue with it was it was always difficult to tell which hand was the second hand and which hand was the minute hand since they're both the same color and thickness. Wish the hour and minute hands were a little thicker so they'd stand out a little better and/or that the minute hand was a different color so it was offset. Resulted in having to study the watch to get the time instead of a quick glimpse to see what time it was. Irritating after a while.
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Reviewed in the United States on February 15, 2026
★★★★★ 5
They were lightweight and attractive
Color: 5535-HP-white
Sleek and attractive
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Blue faced watch.
Color: 5535-ZP-blue
Looks great
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Reviewed in the United States on May 23, 2026