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Description
E83CC Siemens & Halske Platinum Matched Pair ECC83 Munich USED tested OKTwo (2) fully tested USED tubes, platinum matched pair of rare E83CC Siemens (ECC83 12AX7 premium long life substitution) made in famous Siemens & Halske tube plant in Munich in West Germany in 60s. They are real vintage gems, very rare, no microphonics at all, with special cathode coating for 10000 hours of use within manufacturer's specifications. One of the best ever ECC83 12AX7. They are tested with 250V on plates and 1. 5V on grids, 100% for NOS
Two (2) fully tested USED tubes, platinum matched pair of rare E83CC Siemens (ECC83 12AX7 premium long life substitution) made in famous Siemens & Halske tube plant in Munich in West Germany in 60s.They are real vintage gems, very rare, no microphonics at all, with special cathode coating for 10000 hours of use within manufacturer's specifications.
One of the best ever ECC83 / 12AX7.
They are tested with 250V on plates and -1.5V on grids, 100% for NOS tube at these voltges is 2.15mA, the results are:
(2.1/2.3)
(1.9/2.1)
Nice SQ Long life pair with a lot of life left in some decent preamp.
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4.7 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 4
Cool & comfy
Color: Dark Gray Seersucker, Size: King(108"x90")
Cool but not as cold as I wanted
Very soft and comfy though
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Cooling Blanket is a sleep saver for me!
This is the second product I have used from bedsmile and as with the other one, this is a great product! It truly is a cooling blanket. I am a very hot sleeper and live in a hot, humid climate, so this has been a sleep saver for me! One side is silky smooth and feels so good on your skin. The other side has a texture to it which is great if you want to use it as your only bedding, which I do. It covers well and hangs over the edges as it should. I ordered the white one and it is bright and unblemished. The silky side magically feels much cooler than typical bedding and keeps me cooler during the night. It is lightweight but heavy enough to make you feel that you are "under the covers". In my opinion, putting additional covers over it would defeat the purpose but if you live in a cooler climate, it would still be beneficial to use this blanket as the silky coolness would help get a good night's sleep anywhere. Another great benefit of this product is that it does not have any strange odors when unpacking. I did wash it before using, but honestly, I am not sure it was necessary.
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Reviewed in the United States on March 20, 2026
★★★★★ 5
Incredible Value - Soft, Stays in Place, and Military Son Approved!
Size: California King, Size: California King
I purchased this mattress topper for under $27 and I'm so impressed that I'm planning to buy another one!
Easy Installation & Perfect Fit:
This topper was incredibly easy to put on, and it fits my California King mattress perfectly. The 18-inch deep pockets ensure it stays in place - I can move around on the bed and it doesn't shift at all.
Comfort:
The topper is wonderfully soft and has made a noticeable difference in our sleep quality. My husband absolutely loves it, and we both wake up feeling more rested.
The Ultimate Test:
My son recently came home after being deployed for a year. He slept on our bed for hours and immediately commented on how soft and comfortable it was. That's saying something for someone who's been sleeping on military accommodations! He was so impressed that he's planning to buy one for his ship.
Bottom Line:
For the price, comfort, and quality, I recommend this 100%. It's hypoallergenic, stays in place, and has exceeded all our expectations. You can't go wrong with this purchase!
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Reviewed in the United States on November 5, 2025
★★★★★ 5
Nice mattress Topper Pad
Size: Queen
Met my expectations and was just as advertised. Good fit; comfortable.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Incredible
Size: Twin
This product exceeded my expectations. The quality is amazing, it works perfectly, and it was definitely worth the price. I’ve been using it for a while now and I’m really satisfied with the results. I would highly recommend it to anyone looking for something reliable and well made.”
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Reviewed in the United States on May 23, 2026