Westinghouse

84 / 6Z4 BLACK PLATE

14.00 USD

Fine quality power rectifier tubes manufactured in the United States/Canada by renowned Westinghouse. These beautiful 5 pin shoulder type glass tubes, designed for rectifier service in battery and AC operated radio receivers, come with black plates and bottom getters. They are glass etched 84 6Z4 MADE IN CANADA and printed in white on base WESTINGHOUSE RADIO TUBE. Boxes are standard Westingouse red and blue printed 84 / 6Z4.

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.