Made in USA by Sylvania (1940s).
Muddy black plate. Bottom Pan-Getter.
Very nice tube. Sweet and balance sounding.
Nos in original box. Matched pair and quad are available.
The W.E. 300B is a vacuum tube with a long history of high performance and great sound. These tubes are new and in their original packaging. They were manufactured in Huntsville, Alabamba at the Western Electric plant. They are current production 2006 to 2008.
Authentic Western Electric tubes - they do have 4 letters W - E - C - O on the bottom. As I know, that mean Western Electric Corporation. New in original box.
Made in USA.
Remote cutoff tetrode with Mesh plate.
Substitutes ................................... 24A
Nos but no original box. Never been used
Made in USA by Western Electric.
Best of 6L6s in the world.
Round muddy black plate, Bottom D-Getter version.
Two nos in box (Same date code 913) and tested mached.
One nos in box (date code 952).