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  1. S

    Help with calculating Hz in a siren curcuit

    Agreed haha :)
  2. S

    Help with calculating Hz in a siren curcuit

    Thats the problem, the book doesnt show what formulae it uses.
  3. S

    Help with calculating Hz in a siren curcuit

    Ive asked on a few other forums as well, and it seems that most agree that it should be 2 and 0.5k, so i guess im rolling with that, and just assuming the book is wrong. Thanks a lot for your help, ive really been pulling my hair out over this ;)
  4. S

    Help with calculating Hz in a siren curcuit

    Yea thats what i get on my own as well.. Does this mean that my book is wrong? seems weird
  5. S

    Help with calculating Hz in a siren curcuit

    Hmm, do you know what formula you would use to calculate that?
  6. S

    Help with calculating Hz in a siren curcuit

    Yea figured as much, but i just tried it anyway because i couldnt get it to work ;) The schematic as is should get those reults of 1hz and 1khz, and i just don't see how they got that
  7. S

    Help with calculating Hz in a siren curcuit

    Hi, this isn't really homework, but this seemed to be the best place to post it :) Could anyone help with how to calculate Hz in a siren system? Here is a picture of the system: http://imgur.com/a/N9E6Q The Hz of the first astable 555 circuit is supposed to be 1 Hz and the other system is...
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