General Electric (GE)

5749 / 6BA6W 5 STAR

15.00 USD

Rugged miniature glass 7 pin pentode tubes manufactured in the United States by Genral Electric. High mutual conductance and tough construction permits use as RF or IF amplifiers in military, airborne and industrial applications. These tubes have ribbed black plates and top getters, and NOS are printed in white with GE logo 5749 / 6BA6W ***** U.S.A. NB and UT are same construction but printed in red, green or white. All tubes are glass etched 5749 U.S.A. with dot code. Boxes are standard orange and gray printed 5749 / 6BA6W.

Condition

New Bulk
New Old Stock (New in box)
Used Tested

	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.