HEATKEYS

Electronic Ciruits portal of free electronic circuits, schematics, designs, or diagrams & other resources for engineers, inventors & students.

Contains both useful science education and TOTAL CRACK-BRAINED DETRIUS. Amateur science resources, many new science projects and activities for kids, science textbook errors, Tesla coil construction, physics teaching articles, electricity articl...

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Free Electronic projects, schematics, diagramms, pcb, free electronic software and hobbilist electronics resources, electronic community and much more

Electrical Engineering Community for hardware designers with design tools, projects, articles, jobs, events, discussions, and social networking.

PCB Heaven! Electronic theory, schematic circuits and PIC tutorials

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.

Make everything easier in your life with step-by-step instruction, how-to information, and video demonstrations awaiting your discovery at dummies.com ? the online resource for fun fact-finding.

Schematic diagrams, circuits & projects for guitar effects pedals with vacuum tubes and transistor solid state electronics. FREE downloads of schematics such as TS-9, Fuzz Face and other classic rock devices. Build your own fuzz box!

A large collection of free electronics schematics. New circuit, datasheet, project idea, technical articles and related products are posted every week.

Electronic Schematics for Hobbyists - The source of free FM transmitter related schematics, circuits, diagrams, projects, pcbs and tutorials.

delabs Circuits is a web service for electronic product and circuit design. An Engineering Reference Database. The News, Circuits and Designs cover Instrumentation, Test and Measurement, Power Electronics, Industrial Automation, Embedded Microcontrol...