Incredible high quality japanese made by Hitachi 5U4GB branded as National. Why buy new production with inferior materials at a higher price when you can get incredible workmanship performance with NOS tubes? Just $22.99 per tube!
Excellent quality, and a very close reproduction of the Mullard/Philips type construction. These new production chinese 5AR4 seem to have less problems than the Russian or Czech made GZ34 tubes, and are now available at an excellent price!!! Just $36.99 per tube