This is the application note circuit of the integrated circuit used with the LASER diode. The circuit was obtained from the Electronics Experimenter's Handbook of 1992.
This 3 A adjustable source uses the LM350 integrated circuit, which must have a good heat...
This circuit generates 100 MHz signals from a 20 kHz crystal. The circuit is from an 80's...
This receiver was found in a 1968 publication, but can be mounted with a BC548 and BC558 in place...