SKU: 92289872198

Platinum matched quad GU50 NOS NIB + 4 NOS ceramic sockets

Sale price$89.55 Regular price$99.50
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

Platinum matched quad GU50 NOS NIB + 4 NOS ceramic socketsOne platinum matched quad (four matched tubes) GU50 NOS in original boxes with four (4 pcs) genuine NOS ceramic sockets. Tubes are carefully tested and matched by plate current from the huge batch we have in stock. 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

One platinum matched quad (four matched tubes) GU50 NOS in original boxes with four (4 pcs) genuine NOS ceramic sockets. Tubes are carefully tested and matched by plate current from the huge batch we have in stock.


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. 

The ceramic sockets aren't cheap Chinese ones, they are genuine NOS Soviet production from 70s, with totally different clamp system which provides much better contact and reliability.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 92289872198

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4.4 ★★★★★
Based on 24 reviews
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Verified Purchase
RippedOff
Draper, US
★★★★★ 5
Fits the new iPads. Buttons are easily accessible.
Color: 1-Navy Blue
Fits the new iPad. Buttons are easy to reach, and it protects the screen with a soft fell back. Easy white clean vinyl on the outside. It has open vent spots so your device can cool. Slim and sleek. A great value for the money. Buttons are easily accessible. High-quality.
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Reviewed in the United States on April 21, 2026
G
Verified Purchase
Grinosca Garcia
Lowell, US
★★★★★ 5
Perfect, it fits like a glove.
Color: 1-Navy Blue
I really liked the sleeve, the navy blue color looks very elegant and the material feels resistant but soft to the touch. What I like the most is that the back is translucent, so you still see the design of the tablet. It works great for watching videos because it stands firm when folding it, and turning off the screen alone when closing it is very practical. Because of the price it has, the quality is excellent.
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Reviewed in the United States on April 26, 2026
D
Verified Purchase
Denny
Lowell, US
★★★★★ 5
Great Protective Case for My Mother’s iPad
Color: 2-Watermelon Red, Color: 2-Watermelon Red
I bought this case along with my mother’s new iPad, and it was the perfect choice. The watermelon red color looks beautiful with the pink iPad and gives it a very clean and stylish look. The case feels sturdy without adding too much weight, which makes it comfortable for her to carry around and use every day. The stand feature works really well for watching videos, reading, and video calls. I also like that the case supports the auto wake and sleep function, which makes the iPad feel even more convenient and easy to use. The cutouts fit perfectly, and Touch ID still works without any issues. The translucent back is a nice touch because it still lets the iPad color show through while keeping it protected from scratches and bumps. Overall, this case exceeded expectations and makes a great addition for anyone wanting both protection and style for their iPad.
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Reviewed in the United States on May 14, 2026
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Verified Purchase
Leon
Birmingham, US
★★★★★ 4
Good product. What you see is what you get.
Color: 1-Navy Blue
Material feels sturdy and was a perfect fit compatible for my iPad. There's adequate grip and padding for a comfortable yet slim feel. Magnets hold it close and in one position when propping it up for watching landscape videos. Back is translucent as advertised. Solid product, put it on as i opened my new ipad for immediate protection. Perfectly safe blind buy if you're also getting that 'frequently bought together' suggestion from Amazon.
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Reviewed in the United States on June 1, 2026
S
Verified Purchase
Sue Fowler
West Palm Beach, US
★★★★★ 5
Nice iPad case. Good price, lots of colors,
Color: Papaya
Nice iPad case. Well made, fits great. Love the color!
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Reviewed in the United States on June 8, 2026

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