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8020W JAN
  • 8020W JAN
  • 8020W JAN
Cetron valves

8020W JAN

79.00 USD
57.00 USD Save 22.00 USD

Quality Mil. Spec. high-vacuum diode rectifiers manufactured in the United States by world-renowned Cetron. These 4-pin thick glass enveloppe tubes with thoriated tungsten filaments, gray plates, and bottom halo getters, are designed for use in rectifier units, voltage multipliers, and other special circuits submitted to extreme ambient temperature, high operating frequencies, high PIV, and HF transients. They are printed in red JAN 8020W CETRON MADE IN U.S.A. and coded 550A 72241 8821.

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

33 Items

Data sheet

Base
4 pin UX4
Boite type
1/1
Emplacement
28
Quide
3510
Fonction
Half-wave rectifier
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