Cetron valves

4B32 BLACK PLATE

48.00 USD

Quality half-wave rectifier tubes manufactured by Cetron in the United States. These thick glass black plate high voltage tubes, designed for military and industrial applications, can be mounted in any position, and can withstand extreme temperatures. They have 4 pin bases and top anode caps, and are printed in blue on the base with Cetron logo CETRON 4B32 MADE IN U.S.A. with 1986 production codes. Boxes are standard Cetron blue and black printed 4B32.

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.