Davis, CA
All of Gottlieb's System 1 games having solid state sound boards can easily be retrofitted with a chime unit since the driver transistors are all there on the driver board. Furthermore, the sound board is found in the same position as the chime unit. Most any chime unit will work, just remember to add diodes to a chime unit if it formerly came from an EM game. I am restoring a Countdown and already have the chime unit replacement for the sound board. I find chimes more interesting than some of the early electronically generated sounds.
(Topic ID: 42901)
