Build Notes

Where capacitor type isn't specified, you can use monolithic ceramic or film type. Where a component is listed as jumper, you should solder a wire link between the pads.

Note: there is no C5 or R7

Join pins 2 and 3 of the presence pads on the PCB as shown:

Solder a jumper wire between the bottom two pads of the diodes switch pads as shown below:

Board Connections

The PCB connections are labelled as the following: I - Input, O - Output, V - 9V DC in, G - Ground Potentiometers are connected from pin 1 to the square pad on the PCB.

This board was designed so you can use right-angle board mount potentiometers on it if desired, otherwise you will need to solder wired from the pads to the correct pin/lug.

Jack sleeves and DC centre pin should be connected to ground. V, LED + with a 2K2 resistor in series should be connected to the positive pin of the DC connector.