Philips

6BC4 JAN BLACK PLATE

12.00 USD

Top of the line Mil. Spec. triode amplifier tubes manufactured in the United States by renowned Philips ECG. These top quality 9 pin miniature glass tubes, designed as RF amplifiers for television receiver service, come with black plates and top disc getters. They are glass etched 6BC4 and printed in green PHILIPS ECG 34157 U.S.A. 6BC4 8339 AAK. Boxes are standard military white NATO coded 5960-00-501-1488 under contract # DLA900-82-G-0011-0012, dated September 1983.

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

Philips
100 Items

Data sheet

Base
9 pin miniature Noval B9A
Boite type
2/1
Emplacement
34
Fonction
Triode