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Description
Platinum matched pair 6678 RCA 6U8A NOS NIB 6GH8A ECF82 6EA8 Black AnodesOne platinum matched pair (2 tubes) of rare 6678 RCA 6U8A made back in 60s. They come in original old type RCA boxes. They can be used in modified Dynaco ST 70 PC 3 board which accepts 6GH8A ECF82 instead of scarce 7199. They also can be used in original Dynaco ST70 driver board using special noval adapters. We have few 100 pcs packagings of these tubes and all pairs I have are carefully tested and matched by plate current on my Metrix U61 B tester.
One platinum matched pair (2 tubes) of rare 6678 RCA 6U8A made back in 60s. They come in original old type RCA boxes.
They can be used in modified Dynaco ST-70 PC-3 board which accepts 6GH8A / ECF82 instead of scarce 7199. They also can be used in original Dynaco ST70 driver board using special noval adapters.
We have few 100 pcs packagings of these tubes and all pairs I have are carefully tested and matched by plate current on my Metrix U61-B tester. Due to big number of tested tubes, they are matched within 5% or less!!!
Shipping Notes
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Exchange/Return Notes
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4.8 ★★★★★
Based on 2205 reviews
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Product Reviews
★★★★★ 5
So comfortable!
These work great and very comfortable. I put these on with heel moisturizer cream at bed time. Heels were improved overnight. They are washable too!
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Reviewed in the United States on March 31, 2026
★★★★★ 3
Just aren’t large enough.
This is a great idea, and I can wear socks over them and not notice they are there. I just wish they came in a larger size. When I put cream around the edges of my heels where the cracks always are, I cannot stretch the socks wide enough to clear the heel without smearing the cream onto my fingers or on the sock cuff. They do stay in place and aren't squishy at all when walking. They smell good too. The price is right. I wore them overnight and my heels were indeed much softer and smoother than before, and felt moist (tacky) where the cream had been. So they do an amazing job, but after using them six nights, they just aren’t large enough for me to put on without a hassle.
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Reviewed in the United States on April 28, 2024
★★★★★ 5
these really work
saved my poor cracking heels
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Works for foot psoraisis
Size: 2 pairs black L
Got these for work (service industry) to reduce issues with psoriasis and blisters while putting on 20k+ steps a day. Over time the wounds healed and I could work without so much pain. I now don't use them all the time like I used to, only when a new lesion or blister appears, too prevent a breakout. Tip: if you're not in full breakout, wear thick socks under these as a barrier to friction.
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Reviewed in the United States on April 28, 2026
★★★★★ 4
Work well but run small
Size: 1 pair black L
They do seem to run a bit small. I bought them for my bf but snagged them from him because I couldn’t resist! I’m about a W8/12 and they were just a little big but unlike others, I just put them on while sleeping and didn’t walk around with them. If you’re just planning on that, they did a great job at sloughing and moisturizing 😎
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Reviewed in the United States on April 25, 2026