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DiscoverCircuits.com  --   Hobby Corner
 Last Updated on:  07/10/2008 08:39:43 PM

Front Desk Service Beeper
Often a simple mechanical bell is used by a customer at a store or hotel lobby, which when activated alerts the personnel that service is requested.  The hobby circuit below performs the same function electronically.  It also contains a timer circuit, so the service beeper can only be activated once every 30 seconds or so.  This prevents some impatient person from ringing multiple times.

Click on Drawing to view PDF

Service Request Beeper Circuits designed by David A. Johnson, P.E. (June 30, 2006)

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