General Electric (GE)

5U4GA/GB TALL BOTTLE

29.00 USD

Fine tall bottle full-wave rectifier tubes manufactured gy renowned General Electric in the United States or Canada. These glass 8 pin octal based tubes come with black or gray plates and variable position getters. They are printed with GE logo ELECTRONIC TUBE MADE IN USA or CANADA 5U4GA 5U4GB with various codes. They are also glass etched 5U4GA or 5U4GB.

Condition

New Bulk
Used Tested

	Tube Matching 6.00 USD by tube
LEARN MORE 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.