5AR4 / GZ34 types

This 1960s Mullard GZ34 / 5AR4 rectifier tube was labeled for RCA and made in Great Britain (f32 series). It has plates with 4 notches and a hole in the centering pin. The Blackburn factory code is etched in the glass. Tube tests as new.

This 1964 Mullard GZ34 / 5AR4 rectifier tube was made in Great Britain (f32 series) and has the Amperex Bugle Boy label. It has a short bottle and 4-notch plates. The Blackburn factory code is etched in the glass. Tube tests as new.

The 1966 Mullard GZ34 / 5AR4 rectifier tubes in this precisely matched pair were made in Great Britain (f32 series) and labeled for Hammond organs. Both tubes test as new and are precisely matched. They are discounted for blemished flashing (see photo).

This Sovtek 5AR4 / GZ34 rectifier tube has one of the best reputations for new production rectifier tubes at a very affordable price. It was made in Russia by New Sensor corporation and ships in a Sovtek retail box.

The Sovtek 5AR4 / GZ34 rectifier tubes in this precisely matched pair have one of the best reputations for new production rectifier tubes at a very affordable price. They are tested and matched according to their voltage drop across each section.

This 1960s GZ34 / 5AR4 tube was made in Japan and labeled for GE. It has gray plates and a halo getter. Excellent quality at an affordable price. Tube tests as new and ships in its original box.