This 10W commercial amplifier circuit was found in the September 1958 Radio Electronics magazine. Its power is 10W with excellent sound quality.
This two-transistor circuit was found in the August 1972 issue of Radio Electronics magazine. The...
The purpose of this circuit is to automate the activation of an aquarium air pump (aerator). The...
This circuit is from the 1983 Intersil Databook. The circuit has an A / D converter for display of 4 and...