This circuit is from a 90s documentation. It has a hysteresis and uses a light sensing bridge. The circuit generates a 1000 Hz modulated 10 Hz signal. The signal must be applied to an amplifier.
This soft start circuit was found in a 1965 General Electric documentation. The SCR and bridge...
This circuit charges a battery to power a flashlight at night. The circuit is from an English...
This RCA / GE circuit from the 90s can be applied to any modern operational amplifier. The number...