counter controlled siren alarm circuit required

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Thread Starter

Joined Dec 31, 1969
I want to know that the extension of the 3-bit binary counter
so that it can count 9999 digits and display.
And what ammendments or addition of componenets make it possible ?
And use the specific digits (at 9 then at 10 then at 20 then at 120 & at 1120
{Using addition of 10^n ,n=0,1,2,3,4,5 to digit 9 & the to the result obtained by
this type of addition}
the output is given to a siren alarm in the form of input to alarm and it will give
the beep????????

Would you please send me the complete circuit diagram on my e-mail address
As soon as it is possible wednesday 10-06-2009.

please send it today or atleast tomorrow!!!!!!!!!
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Joined Mar 24, 2008
This is not where you ask technical questions. We also don't use email, we use our forums. Registration is free and easy, but if you are depending on a site like this to save you you should have started sooner.

Having said all that, there is a homework section. Register and repost there, here the thread is likely to be shut down.


Joined Apr 20, 2004
You should understand that we help with questions and projects, but do not do work to order. It is your assignment/project, and you should be the one doing the designing and building.