Saturn Systems Accelerator II - Numbered Chips Noted 74LS Series (unless noted) 40000 - 02, 28, 33, 128 40001 - 393 40002 - 86, 136 40003 - 74 40004 - 74 40005 - 74 40006 - C4020 40007 - 175 40008 - 393 40009 - 08, 09 40010 - 373 40011 - 158, 258 40012 - 158, 258 40013 - 153 40014 - 00, 24, 158, 258 40015 - 158, 258 40016 - 00, 03, 24, 26, 37, 38, 132 40017 - 259 40018 - 367 40019 - 367 40020 - 373 40021 - 373 40022 - 08, 09 40023 - 02, 28, 33, 128 40024 - 161, 163 1982NNCE - ? 40025 - 04, 05, 06, 14, 16, 19 40026 - 373 40027 - 00, 03, 24, 26, 37, 38, 132 40028 - 32, 125 40029 - 74 40030 - 10, 12 40031 - 74 40032 - 74