Circuit Tracing

There are multiple colored circuit diagram symbols in different colors throughout the grid. they have been highlighted by color below.

Each set of colors is a connect the dots using the circuit symbols as the guide using the following order

wire > double wire > switch > capacitor > ground > diode > resistor

This creates the shapes shown below, which all represent a letter of the alphabet

The colors of the symbols represent the final order as depicted by the resistor color code order.

Black - T Brown - O Red - O Orange - L Yellow - A Green - P Blue - R Purple - O Gray - N

Which reveals the final answer of TOOL APRON