Recent content by sandeepmrocks

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    High School Why is my LED glowing without any input when using 7402 ic?

    thanx CWatters
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    High School Why is my LED glowing without any input when using 7402 ic?

    Hello everyone...! i have made different logic gates using 7402 ic (quad 2-input nor gate ic). what actually occurs is that after joining different gates for making "and" gate & "or" gate until i give the input the LED glows( i have connected the negative terminal of LED to negative terminal of...
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    What is the difference between IC BT66 and UM66?

    i am going to build this fire alarm. i got IC BT66 in place of UM66 . I want to ask that are BT66 and UM66 same or is their any difference of work. Also can anyone suggest any site where i can get internal circuits of the IC's UM66,TD2002,7805. thanks in advance . :smile: