About The Circuit
Here is a simple guitar pre-amplifier circuit. The circuit is designed for high oimpedance type electric guitar pickups. An op-amp IC uA 741 is all that is required. uA 741 IC is IC1 which acts as the non-inverting amplifier. The volume can be controlled with the help of POT R1 and the tone can be controlled with the help of POT R6. The tone effects can be adjusted to “SOFT” and “BRILLIANT” modes with the help of switch S1.
An input voltage of 12 Volt DC power supply or battery is more than enough, though a maximum of 24 Volts can be used.