Cassette Tape Recorders - A New Breed, June 1969 Electronics World - RF Cafe

Mac's Service Shop: Single Sideband for the CB'er, June 1970

Mac's Service Shop: A Little Dog and SSB Tuning, November 1958

Cassette Tape Recorders - A New Breed, June 1969 Electronics World

Cassette Tape Recorders - A New Breed, June 1969 Electronics World

Janryzone Portable Auto Reverse Cassette Player

Mac's Radio Service Shop: TV and the Little Guy, April 1951 Radio

Mac's Service Shop: Radio Interference, January 1972 Popular

Mac's Radio Service Shop: Looking Forward and Backward, March 1951

Experimental Laser Engines, June 1969 Electronics World - RF Cafe