Re: a circuit to switch a relay by a alarm clock


"Thomas Vogel" <Tommi-Vogel@xxxxxx> wrote in message
news:7f88d87.0504050839.7cbf63a1@xxxxxxxxxxxxxxxxxxxxx
> I want to construct a circuit which switch a relay by a alarm clock.
> Know anyone where I can find a plan in the internet or in a book or in
> a magazine?
>
> tommi

You must define what signal the alarm clock produces before you can
get any useful responses. What is the output voltage? Is it a pulse or
a level? What are the specs of the relay you wish to use? Is the relay
supposed to stay energized until it is manually reset? Is the relay circuit
powered by a battery or a line source?

Perhaps you mean you wish to build a digital alarm clock with a relay
output?



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