SKU: 48164356063

Matched pair C3m Siemens, used, tested NOS. Rare Engraved Tops! Close numbers.

Sale price$75.59 Regular price$83.99
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Description

Matched pair C3m Siemens, used, tested NOS. Rare Engraved Tops! Close numbers.Brand: Siemens Type: Siemens c3m matched pair Model: C3m Siemens Country Region of Manufacture: Germany Auction is for two (2) tubes, matched pair of Siemens C3m, made in West Germany. Rare ENGRAVED LOGOS. Very strong examples, a lot of life left. Close serial numbers. These tubes aren't NOS, but they test really strong and there is still a lot of life in them, they are nicely matched pairs and they could work for years in some preamp or amplifier. I

Brand: Siemens

Type: Siemens c3m matched pair

Model: C3m Siemens

Country/Region of Manufacture: Germany


Auction is for two (2) tubes, matched pair of Siemens C3m, made in West Germany.


Rare ENGRAVED LOGOS. Very strong examples, a lot of life left. Close serial numbers.




These tubes aren't NOS, but they test really strong and there is still a lot of life in them, they are nicely matched pairs and they could work for years in some preamp or amplifier.

I collect tubes and tube gear for more than 30 years and I start to sell recently, please be sure to check my other items and visit my store for more rare NOS tubes and parts.

I have more than 200000 NOS tubes in stock and just small part is listed here, if you are interested in any specific tube or part, please send me message.

If you buy any item on ebay from me and for if you are not fully satisfied for any reason or have any complains, please send me message before leaving negative or neutral feedback or opening a case. I really do care about your satisfaction and I’ll do my best to solve any kind of problem.


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SKU: 48164356063

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Careful shopper
Alexandria, US
★★★★★ 4
Whitens but not a pleasant taste.
Yes, it whitens teeth but is abrasive. Not sure how good it is for enamel, and it tastes terrible.
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Reviewed in the United States on February 18, 2026
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Natrona Heights, US
★★★★★ 5
Great Toothpaste Alternative
I really like this teeth whitening powder. It is easy to use and leaves my mouth feeling clean and fresh. I also appreciate that it is made with nano hydroxyapatite and is designed for sensitive teeth. It has become a great addition to my oral care routine, and I am very happy with this product.
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Reviewed in the United States on May 29, 2026
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Laura
West Palm Beach, US
★★★★★ 5
Effective!
Noticeable difference after 2 uses! No harsh taste either!
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Reviewed in the United States on May 30, 2026
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pri
San Leandro, US
★★★★★ 3
it's not bad
a coffee, tea, and alcohol drinker so i've gone thru a few of these. i knew i wouldn't see immediate results so i just tried to consistently brush my teeth with this. i can't say it made my teeth whiter but i think it brightened my teeth and helps to prevent it from staining? i didn't irritate my teeth or gums which is important, it helped my mouth to feel cleaner or was it bc of the flavors in it that makes it feel like that? also this little container is too expensive!
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Reviewed in the United States on February 14, 2026
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Amazon Customer
Fort Morgan, US
★★★★★ 5
Great Product
Its a good product. It works gradually whitening teeth. I use this powder on top of the Boka Prebiotic toothpaste and I have to say I am pretty impressed how clean my teeth are, the whitening and no sensitivity issues.
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Reviewed in the United States on May 30, 2026

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