RC Electronics Projects
- Ken Hewitt, the electronics consultant for the UK magazine Radio Control Models and Electronics, offers his copywritten designs.
- http://www.welwyn.demon.co.uk

RC Design
- Electronic devices for modelling. Pictures, descriptions, schematics, and documentation for a tachometer, speed control, motor heater, battery indicator, alarm buzzer, and piezo gyro.
- http://www.rcdesign.ru