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

DiscoverCircuits.com has links to 45,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.

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Welcome to DiscoverCircuits.com - online since 2002

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Attention Designers:  Please alert us by eMail if we have linked to sites
where your original material has been copied without your permission.
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Media Kit

DiscoverCircuits.com has been online since 2002.

DiscoverCircuits.com is a portal to free Electronic Circuits/Schematics which are careful cross-referenced into a wide range of categories.   These categories include amplifiers, power supplies, solar, computer interface, music, TV/radio, robotics and many more.  Click here for a complete list of categories. 

DiscoverCircuits.com includes a collection of circuits designed by David A. Johnson, P.E. (founder of website.)   As well as Electronic Resources section with links to component manufacturers/distributors and other topics of interest. 

DiscoverCircuits.com is a vital resource for engineers, hobbyists, students, inventors & consultants.
DiscoverCircuits.com offers quick solutions to electronic design problems.

Payment Terms


The rates quoted are introductory rates and will be available for a limited time.  Acceptance of ads is based on availability. 

Contact us for an insertion order to assure availability of space.

All ads at Discovercircuits.com are to be:

  • Paid via check (payable to "David Johnson")

  • Scheduled for a contracted period of time.

  • Ads for a single will be posted on the agreed upon date after payment is received.

  • Advertiser with extended contracts are invoiced monthly.

  • Advertiser will provide the graphics

  • Ads can be either served from:

    • our server or

    • directly linked to yours or

    • third party server


Send inquires to Jan Johnson


Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches

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Privacy Policy

Discovercircuits.com endeavors to credit original designers.   Please alert us by eMail so we can
delete links to material that have been copied without your permission
.   Thank you.

Copyright of all original material on this website is the property
of David A. Johnson, P.E. (Dave Johnson & Associates ) unless otherwise noted.  

Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.
All material is provided "as is" without guarantees or warranty of any kind, either expressed or implied.