Description
Matched Pair RCA 6L6GC Amplifier Tubes Tested Black Plates, double side getters, clear tops Matching date codes FM These tubes tested good and very closely matched on my recently calibrated TV-7 tube tester, at 40 and 42, with 25 being the minimum for a good 6L6. and a value of 35 representing a "new" tube. The readings of 40 and 42 translate to 5000 and 5250 Gm. All tubes pass short and gas tests where applicable.