We found this circuit in a 1986 documentation. It uses only LEDs, batteries, resistors and the power supply which can consist of 4 batteries or a 9V battery. The basic circuit uses two-color LEDs.
This filter was obtained from the Texas Instruments Linear Circuits Applications. It makes use of...
This circuit is from a 1980 publication. The circuit has high gain with weak signals and lower gain...
This circuit was originally suggested in a 1968 publication to generate a white mark (frame) on a...