SKU: 98995774208

Platinum matched quad GU50 NOS NIB (FU50, LS50)

Sale price$35.96 Regular price$39.95
Save 10%

Pay in installments of $9.99 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Platinum matched quad GU50 NOS NIB (FU50, LS50)One platinum matched quad (four matched tubes) GU50 NOS in original boxes. 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.

One platinum matched quad (four matched tubes) GU50 NOS in original boxes. 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. 


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: 98995774208

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 17 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
T
Verified Purchase
tina
Fort Morgan, US
★★★★★ 5
Really works!
Size: 1.5 Ounce (Pack of 5)
The best brand out there!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
E
Verified Purchase
E.J.
Louisville, US
★★★★★ 4
Helpful but pricey
Size: 1.5 Ounce (Pack of 5)
This is a helpful product. Too bad it’s so pricey though.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
V
Verified Purchase
Vdubya
Carnegie, US
★★★★★ 5
Very helpful
Size: 1.5 Ounce (Pack of 5)
My husband had throat cancer approximately 5 years ago. Treated with chemo and radiation. The radiation burned his saliva glands. This really helps him keep moisture in his mouth. I have it on an auto delivery every 6 weeks (pack of 6)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
J
Verified Purchase
Jay P. Francis
Battle Creek, US
★★★★★ 5
Part of my daily routine for radiation caused dry mouth
Size: 1.5 Ounce (Pack of 5)
This product and xylitol lozenges by xylimelt plus taping my mouth closed as night for sleep make for a comfortable solution to my radiation induced dry mouth condition. Recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
J
Verified Purchase
Joanne
Whiting, US
★★★★★ 5
It works
Size: 1.5 Ounce (Pack of 5)
I have one by my pillow at night to use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026

recommand products