SKU: 7264848696

Platinum matched pair (2 tubes) GU50 ( FU50 ) NOS NIB Unopened Soviet Army boxes

Sale price$26.95 Regular price$29.95
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Ships within 48 hours · Estimated delivery Sep 13 - Sep 18

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Description

Platinum matched pair (2 tubes) GU50 ( FU50 ) NOS NIB Unopened Soviet Army boxesOne platinum matched pair (two tubes) GU50 NOS (FU50) in original Soviet Army boxes (opened just for testing and matching). Tubes are carefully tested and matched by plate current from the huge batch we have in stock. Direct replacement for Chinese FU50, but much better sounding. They are the same codes, the same year of production, from 70s, much better than later ones from late 80s and 90s. GU50 is powerful RF pentode (Pa=40W), used in many audio

One platinum matched pair (two tubes) GU50 NOS (FU50) in original Soviet Army boxes (opened just for testing and matching).


Tubes are carefully tested and matched by plate current from the huge batch we have in stock. Direct replacement for Chinese FU50, but much better sounding.


They are the same codes, the same year of production, from 70s, much better than later ones from late 80s and 90s. 

GU50 is powerful RF pentode (Pa=40W), used in many audio amplifiers and HF linear amplifiers, very similar to Telefunken Wermacht LS50 pentode. 

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Exchange/Return Notes
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SKU: 7264848696

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Claude Cooper
Cuba, US
★★★★★ 5
Excellent shirt!
Color: Chive, Size: Large
Excellent shirt! Comfortable and looks great! True to size, and light weight.
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Reviewed in the United States on March 22, 2026
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Daniel B.
Boise, US
★★★★★ 5
Great suit, great price
Size: Small, Color: Dark Grey
Had to send back because jacket (small size) was too tight around my upper torso so you could tell it didn't fit right. The pants though were the perfect fit, so much so I contemplated keeping the suit - it looked expensive. The suit was delivered as promised so I am thankful for that. Beause I needed it for a wedding the next day I couldn't wait on this seller as I didn't see them offering an overnight delivery. But kuddos to them though for working with me
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Reviewed in the United States on May 15, 2026
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stebi
Port Orchard, US
★★★★★ 5
Suit Review
Size: Medium, Color: Navy Blue
Very high quality and style for a great price! I'm seriously impressed with this suit! The stitching is great, and the fabric looks and feels high quality. Love the navy blue color and the fit. This was a great buy and so much more than I expected! I'd buy it again!
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Reviewed in the United States on March 4, 2026
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Amanda williams
Natrona Heights, US
★★★★★ 4
Good price
Size: Large, Color: Light Grey
Good quality and a great price compared to others! The sleeves were a little long, but overall I loved it.
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Reviewed in the United States on June 4, 2026
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Whitzshopn
Natrona Heights, US
★★★★★ 5
great suit for teenagers
Size: Small, Color: Dark Grey, Size: Small, Color: Dark Grey
We loved this suit, it is true to color so it has this high end quality look and fit my tall(5’10), 14yr son like it was custom tailored. he likes that it has a slim fit and still breathable. If only the hidden elastic band was adjustable then this suit would have been perfect. It was great for 8th grade graduation and affordable
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Reviewed in the United States on June 4, 2026

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