a circuit to switch a relay by a alarm clock

[Thomas Vogel]

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

 

[Thomas Vogel]

"Lord Garth" <LGarth@Tantalus.net> wrote in message news:<orz4e.1859$3z3.1270@newssvr12.news.prodigy.com>...

"Thomas Vogel" <Tommi-Vogel@gmx.de> wrote in message
news:7f88d87.0504050839.7cbf63a1@posting.google.com...
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?

the alarm clock produce a signal which changes all the time. It goes
with a 1,5V battery, so the output is by ~1V.
The relay is powered by a battery.

 

[Thomas Vogel]

"Lord Garth" <LGarth@Tantalus.net> wrote in message news:<orz4e.1859$3z3.1270@newssvr12.news.prodigy.com>...

"Thomas Vogel" <Tommi-Vogel@gmx.de> wrote in message
news:7f88d87.0504050839.7cbf63a1@posting.google.com...
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?

the alarm clock produce a signal which changes all the time. It goes
with a 1,5V battery, so the output is by ~1V.
The relay is powered by a battery.

 

[Lord Garth]

"Thomas Vogel" <Tommi-Vogel@gmx.de> wrote in message
news:7f88d87.0504060612.538a39d@posting.google.com...

"Lord Garth" <LGarth@Tantalus.net> wrote in message
news:<orz4e.1859$3z3.1270@newssvr12.news.prodigy.com>...
"Thomas Vogel" <Tommi-Vogel@gmx.de> wrote in message
news:7f88d87.0504050839.7cbf63a1@posting.google.com...
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?

the alarm clock produce a signal which changes all the time. It goes
with a 1,5V battery, so the output is by ~1V.
The relay is powered by a battery.

 

[GotCoffee]

How about using the timer on an automatic coffee pot. The power
supplied to the heating element can be used. If hooked up properly,
you can get woke up a hot cup of coffee