Description
*Fantastic Tubes 🎷 🎶 * One tube , circa 1940s , U.S.A. made, Westinghouse branded, type 6K7G vacuum tube as pictured. Condition: Tested, Plug & Play Guarantee Silk-screening: Please refer to photos * Hickok TV-7B/U * tested @ 64 min. : 36 * Hickok TV-7B/U is a mutual conductance(Gm) type tube tester. It does check for mutual conductan ce which is a more accurate measure of tube's age. Satisfaction Guaranteed! *Fantastic Tubes !!! 🎷 🎶