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Joint Photographic Experts Group Image  |  2000-09-11  |  40KB  |  647x398  |  8-bit (256 colors)
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OCR: +5v +5v 1mfd v.a.c 60 Hz 470 7490 7490 switching divide -by- decade decade divide diodes 12 counter counter counter 12 coun ter monostable wired to wired to multivi ibrator divide-by-6 divide -by-6 reset count 100 pulse period 74121 50 width output tching counte multivibrator 7421