Klon BufferThis simple and effective buffer improves the high frequency degraded by long cables or pedal chains.
Enclosure and wiring Step 4 of 4
Place the assembled PCB and the rest of the elements (DC and 3.5 jack connectors, 9V battery clip, 3PDT foot switch, led...) in a metal enclosure. Connect the ground of the circuit to the enclosure in order to attenuate the noise (the GND of the input and output jacks are in contact with the enclosure). The following figures show the components mounted in the 1590A and 1590B enclosures.
Use a 24 AWG stranded wire and connect all the components as indicated in the following figure. No matter the order to connect the ground (GND) as far as all the components are connected. The diode led requires a current limiter resistor, use values in between 2.2k and 4.7k for regular leds. The following figure shows the wiring for a negative tip DC connector.