Suggested by General Electric in a 1970 documentation, this circuit makes use of some components of the time, in the case of transistors. The circuit detects smoke by the transparency changing of the air.
June 2017 - These new AVX capacitors are suitable for filter applications, considerably reducing...
Static charges in objects Dan be detected by this sensitive electroscope. The meter indicates when the...
This simple circuit, obtained from a Radio Shack documentation, tests transistors and diodes. The...