1. Western Electric 300B tubes are purchased with a limited 90-day warranty. This warranty is extendable to 5 years, if the enduser returns the completed warranty card with proof of purchase from an authorized dealer or OEM within 10 days after purchase. The warranty card must be returned to:
   
Western Electric Electron Tubes
P.O. Box 185
Lookout Mtn, TN
USA 37350-0185
 
2. The Western Electric 5-Year-Limited Warranty is only available to endusers. Endusers who deem their tube to be defective need to receive a Return Material Authorization (RMA) number from Western Electric Export Corporation before they ship their tube to our Huntsville Works in Alabama. RMA numbers can be requested by:
   
   • using the warranty service form on this website
   • downloading the warranty service form (pdf format) and faxing (404-352-2222) or mailing to us
   • calling 404-352-2000
   • email to

Defective tubes must be safely and securely shipped prepaid for evaluation and testing purposes to:

Western Electric Export Corporation
290 Dunlop Blvd SW
Huntsville, AL 35824
Attn: FMA Dept (rma#) <---replaced with the RMA number received from Western Electric Export Corporation.

Western Electric Export Corporation will at its sole discretion repair or replace the defective tube at no charge to the Enduser for the first 90 days following purchase. If the user has returned the warranty card and proof of purchase to us within 10 days of purchase, the no charge period is extended to one year from date of purchase.
 
3. If the Warranty card and proof of purchase have been returned to Western Electric Export Corporation a defective tube will be repaired or replaced in years 2 thru 5 after purchase at the following percent of the then current retail price:

Year 1 – Free of Charge
Year 2 – 20% of then current Retail price;
Year 3 – 40% of then current Retail price;
Year 4 – 60% of then current Retail price;
Year 5 – 80% of then current Retail price;

The replacement tube will be warranted only for the remainder of the original 5 year period based on the date of purchase of the original tube.