914 pages (they say) of circuit diagrams of all sorts of things. 20 thumbnails per page so presumably > 18,000 diagrams http://circuit-diagram.hqew.net/ Circuits can be searched for or page addresses can be input directly eg http://circuit-diagram.hqew.net/list_8.html <- page 8 http://circuit-diagram.hqew.net/list_234.html <- page 234 ______________________ The pages are watermarked as from HQEW.NET but some contain references to http://freecircuitdiagram.com/ which has the material in less accessible form, and in turn they reference http://circuitdiagram.net/ It's not certain how much the sources overlap or if they are associated. _______________________ See also https://www.facebook.com/pages/Circuit-Diagram-Collection/168126929951759 A Facebook page which seems to collect diagrams from all over - many of much greater complexity that those above. Russell --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .