Lot early 1970s Allied electronics industrial advertising catalogs

Lot of four early 1970s industrial supply catalogs from Allied Electronics (a division of Tandy Corp, the owner of Radio Shack). There is 1973, 1974, 1975 and 1976. These catalogs list tubes and sockets, switches, transformers, motors, panel meters, test equipment, radios, walkie talkies, speakers, PA amplifiers and more.

These catalogs are in nice vintage condition.