This guitar effect circuit was found in a 2002 documentation. The circuit can be powered by a 9 V battery as it has low consumption. The connections of the input and output audio signals must be shielded.
We can obtain the voltage multiplication using all six inverters of a 4049 integrated circuit, as...
Found in a 1970 documentation this circuit makes use of components still common in the market. The...
In the figure we have a source suggestion for the bench with several outputs that can be used...