We found this relaxation oscillator in a 1967 General Electric documentation. The frequency is given by the capacitor. The obtained waveforms are shown.
This circuit was found in a 1980s documentation. It decodes by identifying a certain frequency tone...
This circuit provides an output voltage with the absolute value of the charge and discharge current...
We found this circuit in the 1990 Motorola Linear Databook. The circuit must use symmetric source and has...