Found in National Semiconductor documentation from the 1990s, this circuit corrects the curvature of the response curve of an RTD temperature sensor. The components used are from that time.
This circuit is like the previous one except that it can be triggered electronically. The circuit is...
Found in 90s Radio Electronics, this audio indicator makes use of an integrated circuit that is...
Found in the October 1992 Radio Electronics magazine, this oscillator is controlled by switch S1....