We are adding two new reproduction boards for System 11c:
1. Replacement System 11C Sound Board - Fits a lot of System 11 games - This one is in beta testing and need a few orders for people to test out in other machines - http://pinballpcb.com/products/williams-system-11c-sound/
2. Replacement Sound Overlay board for Whirlwind - We are big whirlwind fans, so made it available. Final version of boards will be available next month - http://pinballpcb.com/products/williams-system-11c-sound-overlay/
We have a ton of orders from the holidays and still trying to catch up, but get an order in and we will get it shipped out, eventually.