General Instruments AY-3-8500-1 TV game chip and associated circuits give choice of six different games. Article gives additional circuits required, including that for 2MHz master dock whose output is divided in chip to get vertical and horizontal syncfrequencies, VHF modulator used between game and antenna terminal of TV set, and rifle target practice clrcuit，All operate from battery suρply atlower left Article covers construction only ingeneral terms,－s,Ciarcia,Hey,Look What My Daddy Built!,73 Magazine.Oct, 1976,p 104－108
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