3 RCA 6X5 6X5GT Vacuum Tubes Rectifiers NOS NIB Lot Of Three Bell Plate Variety Transconductance measured 67 in Section

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

51/50 and 51/51

new in box 8JV8 tube tested to spec on our Paul Hart-calibrated TV7/U

This Sylvania milspec / industrial 5814 / 12AU7 / ECC82 dual triode was tested on our Paul Hart-calibrated TV7/U for shorts

3 RCA 6X5 6X5GT Vacuum Tubes Rectifiers NOS NIB Lot Of Three Bell Plate Variety Transconductance measured 67 in SectionThis trio of new old stock, new in box 6X5GT rectifier tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. There were no shorts or gas. They measured 55 56, 62 59 and 66 48 where minimum (65%) is 40 40 and 100% is 62 62.