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Description
One (1 pcs) ECC83 12AX7 RFT Germany rebranded RSD NOS NIB Single TubeOne (1 pcs) fully tested NOS tube ECC83 12AX7 RFT made in Germany. Made in famous Muhlhousen tube plant, back in 1974. NOS New Old Stock NIB New In Original Boxes They are real vintage NOS tubes in original boxes made back in 1974 in RFT tube factory. They are rebranded RSD and they are in original RSD red&black boxes. I have more than 100 pcs of these tubes and I had enough time last few months to carefully test them on calibrated Metrix and Tesla
One (1 pcs) fully tested NOS tube ECC83 12AX7 RFT made in Germany.
Made in famous Muhlhousen tube plant, back in 1974.
NOS - New Old Stock
NIB - New In Original Boxes
They are real vintage NOS tubes in original boxes made back in 1974 in RFT tube factory. They are rebranded RSD and they are in original RSD red&black boxes.
I have more than 100 pcs of these tubes and I had enough time last few months to carefully test them on calibrated Metrix and Tesla tube testers for plate currents and Hickok for transconductance.
Surprisingly good sounding NOS tube in hi end audio amplifiers and in guitar amplifiers too!
The listing is for ONE TUBE (1 pcs)!!!
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4.8 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 3
Que no tiene pasadores para apretar el zapato
Size: 7 Wide, Color: Black/Black
Que viene en tallas pequeñas y pensé que venían con lazos y no fue así, el resto esta bien el peso muy conveniente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
Good looking shoe.
Size: 9 Wide, Color: Cognac
It's a good looking should which is true to size. Quality is good. However, it is not leather. Inner and outer covering are man made. For me, it's okay. I ordered a 9W which I knew would be no more than a triple E width. I'm actually a quadruple E width so it's taking a little longer to break in. I won't be using these as often as at this stage of my life, I don't have that have functions that require dressier shoes. I'm happy with this purchase, a good value for the price. The slip in feature works well like my Sketcher slip in.
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Reviewed in the United States on July 27, 2025
★★★★★ 5
Good shoes
Size: 8.5 Wide, Color: Cognac
Great shoes and very comfortable. Not very durable in my opinion. Good for dress or casual.
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Reviewed in the United States on March 27, 2026
★★★★★ 5
Great price great shoe
Size: 12, Color: Burgundy Polished Full Grain
Excellent shoe. Tried the Sebago penny loafer and the sizing was ridiculous. These J and M are sized perfectly. I’ve had them before and they wear like iron. Very comfortable right out of the box.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
One of the best shoes
Size: 9.5, Color: Black Polished Full Grain
Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.
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Reviewed in the United States on March 21, 2026
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