The board is built around a manually adjustable control architecture. Five blue potentiometers are aligned along the left edge for fine control-parameter tuning. A large central inductor with a round wire coil and black plastic cover manages electromagnetic fields and supports stable control and filtering. Two red metal oxide varistors on the right side protect the circuitry from voltage transients. The PCB also carries numerous banded resistors, silver or yellow capacitors, and small transistors in both silver circular and black half-circle packages. A large red LED near the top of a long metal plate provides visual operational feedback, and two orange operator-adjustable knobs at the bottom of the metal plate are connected to the PCB by white wires.