Vintage NOS GE 5Z3 Rectifier Amplifier Radio Vacuum Tube TV-7 Tested D18

This is a vintage NOS GE 5Z3, black plate, rectifier amplifier radio electron vacuum tube. I pulled it from a rough box. Comes with original packing. It tested on my TV-7 at 60/58 with minimum values of 40, so good strong testing tube. I purchased a LARGE collection of mostly NOS vacuum tubes which I will be listing so be sure to check my other listings.