CV284 / QS75/20
  • CV284 / QS75/20
  • CV284 / QS75/20
English Electric

CV284 / QS75/20

6.00 USD

Quality British made Mil. Spec. 7-pin miniature glass voltage regulators with top square getters. These fine tubes strike at 110 volts, maintaining voltage within plus or minus 5 volts at 75 volts for currents between 5 and 20 mA. Tubes are stamped CV284 ARROW MA and production code KB/Q, indicating manufacture at English Electric Chelmsford plant. Black phenolic pin protectors are provided, all encased in cardboard cone-shaped protector and white military boxes marked VALVE ELECTRONIC C.V. 284. A.M. REF. NO. 10CV/284 Q .

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

English Electric
53 Items

Data sheet

Base
7 pin miniature B7G
Boite type
1/1
Emplacement
49
Quide
1378
Fonction
Voltage regulator