We found this circuit in a Poptronics from 1998. The circuit can be extended to more competitors with another 4011. The power can be made with voltages from 6 to 12 V.
This circuit for audio applications was found in an English magazine from the 80's. The circuit...
July 2017 - Ricoh's new 200mA R1524x voltage regulators are available from Mouser Electronics with...
This 80's circuitry decodes stereo signals used in analog TV at the time. The circuit can be used...