General Electric

12SX7GT JAN

38.00 USD

Fine Mil. Spec. double triode tubes manufactured for the Armed Forces in the United States or Canada by renowned General Electric. These rugged glass 8 pin octal based tubes, designed for amplifier or oscillator service, have two identical triode sections, and come with smoked glass and bottom D getters. They are glass etched 12SX7GT MADE IN CANADA and printed in red JAN-CL-12SX7GT GENERAL ELECTRIC with GE logo and various production codes.

Condition

New Bulk

	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.