Assertion: turntable's cartridge | /r/CreatedBy | elac
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text: The cartridge heads of both brands accepted standard ½" mount cartridges and most users chose from a large selection of cartridges made by Elac (they invented the moving magnet cartridge), Shure, Empire, Pickering, Stanton, Ortofon, Grado, Audio Technica, Signet, B&O and others.