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Home › Magazines › 2006 › July › Telephone Ringer

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Telephone Ringer

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Published in issue 356, July 2006

With this circuit you will be able to control a high-powered siren or horn, as you like, in order to relay and amplify the low-level sound of your telephone (making it audible in a big house or in a large garden)! Alternatively, you can make a lamp light (or an indicator light) and so create a ‘silent ringer’ (helpful when small children are napping).

Click below to download a PDF copy of this article from Elektor magazine.

 

Downloads 
PDF Article (060113-UK.pdf)
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Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

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