meecheekoh Posted December 21, 2009 Report Share Posted December 21, 2009 ??? i have purchased a wrong 7segment part no.i have bought els411 instead of els422. the nearest electronics store is a 2.5hours trip from my province and i can't afford to travel that far to purchase a common anode led display.i am currently working on my project using 7447. could i still use my common cathode led display for my project? if yes, how can i do that? please help.. Quote Link to comment Share on other sites More sharing options...
JamesUWF Posted December 21, 2009 Report Share Posted December 21, 2009 I suppose you could, if you ran each of the 7447 outputs (a-g) through inverters, if you have some 7404's handy, before the resistors and LEDs. Quote Link to comment Share on other sites More sharing options...
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