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

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

QST Looks at Television - 1944, January 1945 QST - RF Cafe

Magnetic Tape Recording, 48% OFF

Mac's Service Shop: Meter Accuracy Specifications, April 1972

Magnetic Tape Recording, 48% OFF

Experimental Laser Engines, June 1969 Electronics World - RF Cafe

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

Vintage Electronics World Magazine Articles - RF Cafe

Cathode-ray tube - Wikipedia

Cassette recorder museum

Mac's Service Shop: Customer Cues, October 1958 Radio & TV News

Color Television?, December 1949 Radio & Television News - RF Cafe

Vintage Electronics World Magazine Articles - RF Cafe

The first stereo cassette recorder - 1966 Philips EL3312 / Norelco