GE 12B4A Vintage Vacuum Tube All vacuum tubes I have for sale come from a recently closed electronics service department's parts inventory.  The tubes have been sitting around on shelves for years.  All tubes with box included are NOS (New old stock) never been used.  Since this tube did not have a box it has possibly been used.  I have no way of testing them,  however I will gladly accept returns if you have any problems. Don't forget to check my other auctions for more vacuum tubes and other items. I will combine shipping whenever possible to save you money! All tubes are shipped out in boxes for maximum protection. Thanks for looking!

 _gsrx_vers_332 (GS 5.4.1 (332))