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Electronics projects, electronic circuits diagrams and schematics. Electronics circuit design and kits with circuit diagram pictures, components and pcb layouts.

YouTube is a place to discover, watch, upload and share videos.

Hobby Projects, a resource for Hobbyist, Engineers, Students, R&D Persons & Consultants, Electronic Projects, Electronic Tutorials, Microcontroller Based Projects, Microprocessor Tutorials, Schematics, Dictionary of Electronics Terms, Abbrevi...

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

A community dedicated to helping everyone learn the art of audio. Projects by fanatics, for fanatics!

CNET is the premier destination for tech product reviews, news, price comparisons, free software downloads, daily videos, and podcasts.

Complete Patent Searching Database and Patent Data Analytics Services.

museum of radio valves and tubes with indexes thumbnails pictures articles equivalents and vintage adverts

The leading professional association worldwide for professionals and students involved in the audio industry. The AES serves its members, the industry and the public by stimulating and facilitating advances in the constantly changing field of audio. ...

Valcom specializes in Real Time IP Voice and MultiModal Communication Systems for Education, Government, Military, Healthcare, Transportation, Commercial and Industrial Industries.

No Script, No Fear, All Opinion

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