The circuit is from the 1977 National Semiconductor Audio Handbook. The bass and treble control is Baxandall type. The integrated circuit used is not common today.
This circuit was published in an article in Electronics Now magazine in October 1995. The circuit...
This circuit, for ordinary incandescent lamps, allows you to adjust the lighting level in 2...
July 2017 - Ricoh's new 200mA R1524x voltage regulators are available from Mouser Electronics with...