Mini Guitar Amp
This mini guitar amplifier is perfect for home practice. It features gain and volume controls, offering a very dynamic sound.Steps
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Status: Active
Enclosure and wiring Step 4 of 4
Mount the assembled PCB and the rest of the components (DC jack, input/output jacks, 9V battery clip, 3PDT foot switch, led...) in a metal enclosure. Connect the ground of the circuit to the enclosure (the ground of the jacks are in contact with the enclosure). The distance between the potentiometers is 28 mm.
Use a pair of flat-nose pliers to snap off the anti-rotation tab on each potentiometer.
WIRING
The amplifier can be powered by a 9-12 V DC adapter or a battery. The figure below shows the connections for a DC connector as negative tip (standardized Boss style 2.1 mm with a negative tip orientation). The stereo input jack acts as a switch when the input cable is inserted.
BOOST MOD
Place a 100nF capacitor on C6 and connect a switch to SW.
