Matched Pair Sylvania 7N7 Vacuum Tubes August 4 2022 I am listening as I

I am listening as I write and this album sounds very good with only an occasional click and pop -- an 8 out of ten

a wire snubber for increased rigidity and an MR Z5R date code

It measured 57/60 where minimum (65%) is 40/40 and 100% is 62/62

This new old stock-testing matched pair of RCA 12SN7GT dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

but also because if it is a brand other than RCA

Matched Pair Sylvania 7N7 Vacuum Tubes August 4 2022 I am listening as IThis matched pair of Sylvania 7N7 dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they tested as follows: Tube One: 71 69 and; Tube Two: 71 74 (Minimum (65%) is 50 50 and 100% is 77 77. They have black wing plates, beautiful flashing and round bottom mica spacers. I have played them (with adapters, not included) in my AC heated Radio Craftsmen RC 2 mono block amplifiers