This circuit was found in a 90's EDN. The circuit provides two 15 V outputs and one 5 V output from the 12V voltage of a car battery. The components are from that time.
Found in a 2005 Linear Technology application manual, this circuit provides 12-bit resolution output...
This amplifier, obtained in an Argentinian publication of the 1970s, provides a 6 W output. The...
This circuit was obtained from an American 80's documentation. The operational ones can be...