EMG and Fluence cavities can look intimidating, but your Iron Age killswitch wiring is still simple and universal. This quick guide shows you the two-circuit rule, jack-first connections, and the correct LED resistor values so you can test, confirm, and install with confidence...




Alex Rodea
Author
Alex is a former U.S. Marine avionics technician turned founder of Iron Age Guitar Accessories, a one-man shop building boutique picks, knobs, and kill-switches since 2015. He applies systems thinking, precision machining, and insights from thousands of shipped orders and customer reviews to write practical guides on tone, materials, and design for serious players.