This circuit has an accuracy of 1%. The components used must be precision as well. The input frequency range is 40 Hz to 10 kHz with the indicated components.
This SCR relaxation oscillator was found in old documentation. The SCR can be TIC106 and the...
Found in the March 1974 Radio Electronics magazine, this circuit is designed to measure the level...
This circuit was found in Motorola's 1967 documentation. The circuit makes use of power...