HEEEEELLLLPP!!!! .. many questions follow

Discussion in 'General Electronics Chat' started by redacejr, Apr 22, 2008.

  1. redacejr

    Thread Starter Active Member

    Apr 22, 2008
    1. i bought ic 555 and ic 556 dual timer and i was looking for some cool projects on breadboard for them... any ideas???

    2. i like electronics but i have NO idea on how a transistor works =S

    3. i have this big motherboard of some old radio tv thing and on on a "jet" ( i think thats what their called) and on it there is this ic with 16 pins and the number on it is "a0301012 RES 0117ffa6f-Z29". ther electronics shop guy told me that they dont have it as this number doesnt match. is there any replacement for this thing???

  2. Caveman

    Senior Member

    Apr 15, 2008
    Read the www.allaboutcircuits.com e-books. They are free and they tell you a lot.
    Search these forums for 555 ideas. They are out there.
  3. beenthere

    Retired Moderator

    Apr 20, 2004
    For your #3, the ic is most likely to be a part made under contract for the board it's on. The number won't cross to anything. What did the board do?
  4. jericko


    Apr 21, 2008
    im practly in the same boat you are, finished school about a year ago with an associates degree, cant remember very much from it. though my books make for very good reference guides, remember this its not in how smart you are its how you find the solutions to the questions. (index my friend index)

    anyway, 555 timmers are pretty neat little gadgets, you can use them for a variety of things: strobe lights, clocks, alarm signal generators, etc. the list goes on and on which is why they made it an IC.

    anyway let me see there is a few shareware programs you can get, let me see if i can get you the link.. ahh here we are

    its free but has a few restrictions, you can pay to unlock them but for the most part free..

    now as far as transistors go read this it even shows how to add in a 555 timmer with a transistor circuit.