6AU6A

14.00 USD

Fine minitaure glass pentode tubes manufactured in the United States/Canada by RCA. These 7 pin tubes, designed for audio and RF amplification, come with gray or black paltes and top getters. They are printed in red or white with RCA logo, RCA ELECTRON TUBE, with various production codes. Boxes are standard old or new style RCA red, black and white printed 6AU6A. Photo is typical of available inventory.

Condition

New Old Stock (New in box)

	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.