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Description
EL509 EL519 6KG6 EI Yugoslavia Philips Triple Mica NOS PLATINUM PAIR (Two tubes)For sale is one perfectly matched pair (2 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 pair (2 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 pair for years ...
These tubes are perfect replacement tubes for EAR861 / EAR859 amplifiers.
The listing is for ONE PAIR (Two tubes)!!!
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Exchange/Return Notes
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4.5 ★★★★★
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Product Reviews
★★★★★ 5
Hands down best protein drink
Flavor Name: Chocolate, Size: 11.5 Fl Oz (Pack of 12)
Best protein drink out there. Chocolate is the best flavor. My opinion anyway. Helped me lose 65 pounds.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Incredible, perfect
Flavor Name: Zero Ultra, Size: 16 Fl oz (Pack of 15)
This is definitely the best flavor of Monster! No calories, but full flavor. I can't get enough of this stuff. It does cost a bit, but it is worth getting every once in awhile as a treat. I love it, and I would definitely recommend it. There is a high level of carbonation, so it doesn't go flat too quickly.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
This Stuff Turned My Morning into a Rocket Launch – No Crash, Just Pure Chaos!
Flavor Name: Zero Ultra, Size: 16 Ounce (Pack of 24), Flavor Name: Zero Ultra, Size: 16 Ounce (Pack of 24)
I popped open my first can of this sparkling energy elixir expecting the usual lukewarm disappointment, but instead, it hit like a caffeinated unicorn tap-dancing on my taste buds. The flavor is ridiculously good – think tropical punch meets crisp citrus without that artificial "why did I do this" aftertaste. It's completely sugar-free, so no sneaky crash later, yet the carbonation is perfectly balanced: fizzy enough to feel exciting, but not so aggressive it turns your esophagus into a launchpad. Digestibility? Flawless. My stomach thanked me instead of staging a protest, which is a miracle for someone who once considered coffee a food group.
As for effectiveness, this bad boy delivers exactly what it promises and then some. The caffeine content is spot-on potent – enough to power through a soul-crushing workday or an impromptu home renovation project without the jitters or heart palpitations that usually come with high-octane drinks. I tackled my to-do list like a caffeinated superhero, all while staying hydrated and focused. Five stars for turning a regular Tuesday into an epic quest. If you're looking for clean, bubbly motivation in a can, stop scrolling and add this to your cart immediately. Your future self will high-five you.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Great taste without the sugar crash
Flavor Name: Zero Ultra, Size: 16 Fl oz (Pack of 15)
I picked this up because I wanted an energy drink that wouldn’t be loaded with sugar, and this one honestly surprised me. The flavor is really light and refreshing—not too sweet or overpowering like some other energy drinks.
I’ve been using it mainly in the mornings or when I need a quick boost, and it definitely helps with energy and focus without making me feel jittery. One thing I really like is that there’s no heavy aftertaste, which I’ve noticed with other sugar-free drinks.
Pros:
Zero sugar but still tastes good
Smooth, not too strong or artificial
Gives a noticeable energy boost
Cons:
Might be a little too mild if you like very strong flavors
The price can add up if you drink them often
Overall:
I’d recommend this if you want a cleaner-tasting energy drink without all the sugar. It’s easy to drink and does what it’s supposed to.
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Reviewed in the United States on April 3, 2026
★★★★★ 5
Great!
Flavor Name: Zero Ultra, Size: 16 Fl oz (Pack of 15)
Great price for this pack, saves money in the long run! The flavor is great and love the carbonation. The sugar free flavor is my favorite.
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Reviewed in the United States on May 28, 2026