Guitar Effects Emulation Circuit Marshall

Marshall jcm800 emulation circuit can control preamp, treble, mid, bass, master, and volume. The circuit works with a 9 volt battery, j201 jfet mosfets are used in the control stage, I often come across this transistor in many guitar effect sound control circuits, its characteristics are very good, if it cannot be found in the market, be careful that the datasheet values ​​of the equivalent are not very different

There are layout plans (2 versions) and pcb drawings for the circuit.

SAMPLE;

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