Instruction Manual

Thunderclap Kit Instructions V1 Page 8 of 11
Output Jack (±)
Your kit came with either ¼ inch or 3.5 mm jacks like the ones shown below. Refer to the diagram below. Make sure
that the right pins on the jack are connected to the correct holes in the PCB. The round pad is the ground and
connects to the shield lug on the jack. The square pad is the signal and connects to the tip lug.
If you are have ¼ inch open frame jacks, look carefully at which lug is connected to which contact, because not all
open frame jacks are the same. If you have ¼ inch closed frame jacks that are switched, then there are six terminals
on the jack, so make sure that it is oriented as shown. If you connect the wires to the switched terminals, then
nothing will happen when you plug in the jack.
Trigger Jack (±)
Just as with the output jack, make sure that the right pins on the jack are connected to the correct holes in the PCB.
Again, round pad is shield and square pad is tip.
Power (±)
If your Thunderclap is a module, then connect wires from the PCB to a power connector that is appropriate for your
style of modular power bus. If you purchased the Eurorack kit, then a Eurorack power connector is supplied. With
the red stripe on the cable down (as shown below), strip the top four wires. Twist them together into two pairs.
The top pair is V+, and the bottom pair are V- (ground). Insert them into the PCB and solder.
If your Thunderclap is a stomp box, the simplest way to connect the power is to connect wires straight from the power
jack to the PCB. Then, the unit is powered on when the power supply is plugged in.