- FC's Electronic Circuits - Forrest Cook.
- Strippenstrolch - Electrical and Electronics.
- 4QD-TEC - Many Discrete Semiconductor Designs. Generic Circuit Blocks
- Circuit Exchange International - Circuits to learn. design and build Gadgets
Educational Circuits and Design Resources
- Electronics Club - Construction of Projects, Soldering Guide, by John Hewes.
- Electronics 2000 - Calculators, resources, links, information, basics, learning.
- Kainka Mikrocontroller – Projects, information, microprocessor, SBC.
- Projects of Ronald - Simple Oscilloscope, Nixie Tube Projects, Clocks, Valve Tube circuit
Hobby DIY Websites
- RepairFAQ-Sam - Repair and service tips, how-to and schematics, home electronics.
- HobbyElectronics.info – Tutorials, Electronic Course. DSPs, Repair.
- Electronics Hobbyist – Hobby Ideas, Tesla, Electrostatics, Basics.
- Circuits of Aaron Cake – Lights, Laser, Telephone, Auto – Projects.
- Rod Elliott - Elliott Sound Products -DIY audio. Build your audio equipment.
- Rason Projects Page – Power supplies, opamps, jfet, audio, RF.
- Australian Amateur Radio – Morse/10/Q Tables, UHF CB Repeaters.
- QRP DL2YE0 - Udo from Spenge. 250 W SMPS with power FETs.
- Bowden’s Hobby Circuits – Many circuits and blocks you must know.