Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 30,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.
We make every effort to link to material posted by the designer. 
Please let us if you would like us to link to or post your design.
HOME Schematics Discover Forum Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches

 

Circuits designed by David Johnson, P.E.
Last Updated on: Thursday, March 22, 2012 06:41 AM

Master Category List - Dave's Circuits

Text & Graphics Copyright © David A. Johnson, PE - ALL Rights Reserved.
LINKING to Dave's circuits is permitted but DO NOT COPY to your WEB SITE server!

Siren Circuits
  • 3V Sweeping Siren Alarm
    The circuit uses a LTC1799 precision frequency generator from Linear Technology.  A 74HC14 hex Schmitt trigger from Texas Instruments is also used to perform several other functions.  One section is wired as a simple 7Hz square wave oscillator.…

More  Siren Circuits

Find Dave's Circuits by Category
eMail David A. Johnson, P.E. about this circuit
 
HOME Schematics Discover Forum Hobby Corner Dave's Circuits Electronic Resources Contact Info

 

 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |    Privacy Policy

Copyright  2002 - 2012 David A. Johnson & Associates.  All Rights reserved. 
 Linking is welcomed but COPYING any content or graphics to your web site is expressly prohibited.