2 Samsung 6FQ7 / 6CG7 Vacuum Tubes Lot Of Two

2 Samsung 6FQ7 / 6CG7 Vacuum Tubes Lot Of TwoThis pair of Samsung MANUFACTURED 6FQ7 6CG7 dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measure as follows: 62 50 and 71 62 where minimum (65%) is 50 50 and 100% is 77 77 These tubes have copper support rods; top, O getters; short, gray, bitten, plates and excellent flashing. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE

new in box RCA 6CK3 / 6CL3 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box milspec / industrial Philips ECG 6189 JAN-6189W dual triodes with was tested on our Maxi Preamp II for shorts

I am playing them as I write in on of my Sound Craftsmen RC-2 monoblock amplifiers with RCA Living Stereo's CD of Bartok's "Concerto For Orchestra

irregularly-crenelated circle

firmly-affixed to the base

64 and 65 where minimum (65%) is 40

7 milliamps and transconductance was 2120 micromhos for Tube One

Transconductance measured 67 in Section One and 68 in Section Two for Tube One and 69/70 in Tube Two where minimum (65%) is 50/50 and 100% is 77/77

Tube Three measured 27

new in box GE 12AQ5 tubes tested to spec on our Paul Hart-calibrated TV7/U

3 milliamps while Tube Two’s was 28

old-fashioned