Here are 2 vintage 12SL7 GT Electron Amplifier Radio Vacuum Tubes, and 1 12SL7
GT. The Raytheon 12SN7 tested on my TV-7 at 120/120+ so basically maxing out my machine. The CBS Hytron 12SN7 tested at 86/96 with minimum values of 50/50 so good tubes. The Sylvania 12SL7 tested at 62/60 with minimum values of 32/32.I purchased a large collection of many NOS vacuum tubes which I will be listing so be sure to check my other listings.
GT. The Raytheon 12SN7 tested on my TV-7 at 120/120+ so basically maxing out my machine. The CBS Hytron 12SN7 tested at 86/96 with minimum values of 50/50 so good tubes. The Sylvania 12SL7 tested at 62/60 with minimum values of 32/32.I purchased a large collection of many NOS vacuum tubes which I will be listing so be sure to check my other listings.