HEATKEYS

wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual. Our multilingual how to manual has free step-by-step instructions on how to do all types of things.

Specializes in Antique Radio Schematics, Capacitors and Resistors. Carries antique radio schematic diagrams and electronic circuit service information for American, Canadian and European antique radios.

Resources for Radio, Radar, RF, Microwave, & Wireless Engineering

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!

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

CSGNetwork Free Information. Calculators, Converters, Glossary, Open Source Code... find something. Most pages require JavaScript.

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