This is a circuit suggested by Linear Technology in a 1980s documentation. The integrated circuit is from the era. Observe the input and output voltage.
This circuit was found in RCA documentation from the 1970s. It was suggested to produce tones for...
This circuit is from a project published in the March 1996 Electronics Now magazine. The author used...
This amplifier uses the LM358, this operational amplifier with excelents characteristics for this...