Various

GZ34 / 5AR4 HALO GETTER

29.00 USD

Rugged brown base thick glass rectifier tubes manufactured in China by Election Tube. These gray plate 8 pin octal based tubes come with top halo getters, and are printed in white ELECTION TUBE 5AR4 MADE IN CHINA, with logo. They are boxed in plain white boxes printed 5AR4 MADE IN CHINA.

Condition

Tube Matching
Tube Matching
6.00 USD by tube

WHY ?

A tube may have one, two, or three internal sections depending on the purpose of the tube; somtimes these sections are all the same, sometimes they are different. Due to manufacturing and material tolerances, there may be slight differences between the original specification and the actual tube. Tube matching tests each one of these internal sections and selects tubes, compared to original specifications at manufacture, for balanced performance and good sound.

HOW ?

All our tubes are tested by us prior to packing on our Stark, AVO, Simpson or RF Laboratories Inc. calibrated testers. On request for tube matching, tubes are matched for Mutual Conductance in Micromhos and Plate Current in Milliamps on our Amplitrex or Radioelec Duovac testers, with results printed for each  individual tube. Certain tubes difficult to test are matched for Mutual Conductance in Micromhos only on one of our regular calibrated testers. On request we can also test for Microphonics.

Quantity

Various
3 Items

Data sheet

Base
8 pin Octal
Boite type
1/2
Emplacement
SS
Quide
1494
Fonction
Full-wave rectifier