by retro games 100 » 2018-12-30 @ 13:38
I've noticed something about this 3 digit code. If the first digit is 1, then I notice on some of the smaller chips, I see 91. I'm fairly sure this means 1991. If the first digit is 2, then I see 92 on some of the smaller chips. If the first digit is 3, then I see 93 on some of the smaller chips.
So, the first digit represent the year of manufacture:
1 = 1991
2 = 1992
3 = 1993
I've never seen a SCC-1 with the number 4. Also, in 1994, the MKII / SCC-1A/B was released.
Edit: now to try and figure out what the remaining 2 alphanumeric digits mean...