IBM Audible Random Timer lolwtfbbq thread, part 8 of apparently 8.

Thats all for now until I can put a meter or logic probe on this thing to figure out more in detail how the counters operate or what that giant rotary switch does.

I'll answer any questions with my best guesses, or show more detail of the PCB for anyone that wants it.

I'm here all week. Tip your server. Try the Ceasar Salad!