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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
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Description
Platinum Matched Pair ECC83 Valvo Philips 12AX7 Tested 125% NOSPlatinum Matched Pair (2 tubes) ECC83 Valvo Philips 12AX7 Tested 125% of NOS tubes. Very nice, super strong, perfectly balanced tubes with a lot of life left in them. Tested also for hum and microphonics in RIAA preamp. Made in famous Heerlen, Holland plant in 1966. The same etched DELTA codes! Pull outs from professional backup device. They are tested with 250V on anodes and 1. 5V on grids, 100% is 2. 15 mA, their measurements (2. 6 2. 6) (2. 6 2. 8)
Platinum Matched Pair (2 tubes) ECC83 Valvo Philips 12AX7
Tested 125% of NOS tubes. Very nice, super strong, perfectly balanced tubes with a lot of life left in them.
Tested also for hum and microphonics in RIAA preamp.
Made in famous Heerlen, Holland plant in 1966. The same etched DELTA codes!
Pull outs from professional backup device.
They are tested with 250V on anodes and -1.5V on grids, 100% is 2.15 mA, their measurements (2.6/2.6) (2.6/2.8) mA
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Exchange/Return Notes
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4.8 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Best socks
Size: Medium, Color: Pink Elixir Assorted
Everyone got socks in their stockings this year. But no one was complaining. They weren't thin like some socks. But not super thick either. Just right. I even bought a pair for myself. No regrets. Will definitely buy again.
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Reviewed in the United States on January 24, 2024
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all.
The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day.
They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable.
Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
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Reviewed in the United States on April 14, 2026