System1 Chime Board (Tone Board)

This is a repro of the Gottlieb Chime/Tone Board used in Dragons, Charlies Angels, Solar Ride, Countdown and Pinball Pool.

blank PCB from JLCPCB


Different variants of the 555 timer chip do exist.For example the chip labeled NE555P from 'STEK' are reported to work, while same labeled chip from 'TI' will give you the wrong tones.

For having the same sound as with the original Soundboard use film capacitors instead of kerkos for C1 ... C6 (C4,C5,C6 are optional).