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LOGIC_CONTROLS_25_W_LAMP

2016-08-14 21:26  
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LOGIC_CONTROLS_25_W_LAMP
Ordinary 1-A bridge is used with H74C1 optoisolatorto pass full current to 25-W lamp when logic inρut goes low (to around,so full 5 V is applied to light source in optoisolator).-D. D. Mickle, Practical Computer Projects, 73 Magazine, Jan. 1978, p 92-93.