5AR4 / GZ34 tubes

This 1960 Amperex GZ34 / 5AR4 full-wave rectifier tube has gray plates and dual D getters (f33 series). The white print on the glass has the Bugle Boy logo and says "Made in Holland." The Sittard factory code is etched in the glass.

This rare 1959 Amperex GZ34 / 5AR4 rectifier tube has dual D getters and smooth gray plates (f31 series). The white label has the Dynaco logo and reads "Made in Holland." The Sittard factory code is etched in the glass. Tube tests as new.

This Valve Art 5AR4 / GZ34 full-wave rectifier tube has welded gray plates and a halo getter. The gold print on the glass has the Valve Art logo and says "O&J, China." Tube is tested for tight section match and ships in its original box.