This is a vintage Toshiba Japan, 5U4 GB rectifier electron amplifier vacuum
tube. It tested on my TV-7 at 62/60 with minimum value of 40/40, so good tube.I purchased a large collection of mostly NOS vacuum tubes which I will be listing so be sure to check my other listings.
tube. It tested on my TV-7 at 62/60 with minimum value of 40/40, so good tube.I purchased a large collection of mostly NOS vacuum tubes which I will be listing so be sure to check my other listings.