This medium power circuit is from an English publication from 1989. The integrated circuits are of types that are still obtainable. The power supply must source at least 2A.
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This sophisticated function generator circuit appeared in the September 1972 issue of Radio...
We found this circuit in a 1975 publication. The circuit can be made with more modern equivalent...
The open output voltage on this circuit is approximately three times the peak value of the input...