From an input signal, and using an unusual current source, this circuit generates a ramp, that is, a voltage that grows linearly up to a certain value, and then falls.
This circuit is from 2005 documentation. It automatically starts an irrigation pump when the...
Found in an old Radio Electronics, this circuit uses common components today. The resistors of the IC...
This is a traditional oscillator configuration with the 741 found in a 1980 publication. When...