Lot of 21, new in boxes, vacuum tubes and tube pin straightener. Also in short supply for tube-amp powered guitar solos. "Whatever you put through an amp with tubes is going to have extra...are integral to the working of an amplifier and its sounds" (Peter Frampton) Brand new, never used. Vintage Raytheon, GE and Sylvania tubes. All different models. Safely and well stored. Variety of models that you can read on box ends, some rare or hard to find. Good for TV/Radio repair and hobbyist. and amplifiers. Currently vacuum tubes are manufactured in Russia, and no longer available at this time. Musicians value them over modern circuitry producing an unobtainable tone. "We feel it in our fingers" said Joe Striani, a rock guitarist with 15 grammy nominations. "There's a tactile response..." Tube pin straightener included. (quotes taken from WSJ 4/13/22)