Friday, May 2, 2008
| Free Electronics Project with schematic diagram and materials 3 Transistor Audio Amp , Improved 3 Transistor Audio Amp , Telephone Audio Interface, LED Photo Sensor, Triangle and Squarewave Generator, Low Frequency Sinewave Generators, Touch Activated Light, AC Line Current Detector, Decibel Meter. http://ourworld.compuserve.com/homepages/Bill_Bowden/page8.htm#light.g |
