Various manufacturer

6AB7 / 1853 RED

7.00 USD

Quality red finished metal octal-based tubes manufactured in the United States for export. These semi-remote cut-off pentode tubes are designed as RF or IF amplifiers in television receiver service, having a high transconductance of 5,000 micromhos. They are from bulk trays, and are printed in black 6AB7 MADE IN U.S.A. and coded A1G or B1G.

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.