Electronics
47 sites
https://101science.com/Radio.htm
A comprehensive free electronics and electrical engineering reference hub covering everything from basic electricity and Ohm's Law to advanced RF design, DSP, amateur radio, and circuit simulation. With hundreds of curated links, formulas, tutorials, data sheets, and calculators organized across multiple phases of learning, it serves as a structured self-study guide for electronics enthusiasts and engineers alike.
https://whiskeytangohotel.com/
WhiskeyTangoHotel.Com is a hobbyist electronics and amateur radio blog featuring hands-on projects like ESP32 microcontroller builds, temperature logging with Node-RED, and Morse code analysis tools. The site blends practical hardware tutorials with radio operator interests, making it a great find for tinkerers who enjoy cheap microcontrollers and DIY data visualization.
http://andrewscom.com.au/
Andrews Communications is an Australian retailer specializing in marine radio, telescopes, binoculars, scanners, CB radio, and test equipment. The shop serves customers across Australia with a broad range of optical and electronic communication products.
http://sss-mag.com/smith.html
A comprehensive reference hub dedicated to the Smith Chart, the classic RF engineering tool invented by Phillip Smith of RCA, covering tutorials, software downloads, example charts, reference books, and curated links to related tools and pages. Visitors can explore the mathematical foundations of impedance matching, s-parameters, and microwave design through a well-organized collection of articles, Java applets, and PDF resources.
http://donklipstein.com/
Don Klipstein's sprawling technical resource covers everything from LEDs and fluorescent lamps to Tesla coils, xenon strobes, lasers, and high voltage experiments. With decades of accumulated hobbyist knowledge, detailed guides, and regularly updated content, it's an indispensable reference for electronics enthusiasts interested in lighting and discharge lamp technology.
http://sss-mag.com/smith01.html
SSS Online is a long-running RF and spread spectrum engineering magazine offering deep technical resources on Smith charts, S-parameters, impedance matching, Eb/N0, and link budgets. Managed by Pegasus and active since 1995, it serves RF engineers and ham radio enthusiasts with articles, software downloads, tutorials, and reference material on microwave and wireless design topics.
http://ee.cleversoul.com/
The EE Compendium is a comprehensive reference hub for electronics engineers, students, and hobbyists covering microcontrollers, embedded systems programming, and hardware development tools. Visitors will find curated links and resources spanning popular platforms like Atmel AVR, Microchip PIC, Intel 8051, and Freescale chips, along with project kits, robotics, software compilers, and career resources.