Motherboard:  Tandon 8" DOS/Controller   *300023-001

MB Position       Pins      Chip
-----------       ----      -------------
1E                14        DM7438N
1F                14        DM7438N
2D                20        74LS244N
2F                16        DM74LS123N
2H                14        MC4024L
2G                14        MC4044P
2E                14        DM74LS04N
3A                14        DM7414N
3B                14        DM74LS04N
3C                28        MOS300541-001 ("REV B")
3D                14        74LS174N
3E                14        74LS08N
3G                14        DM74LS86N
3H                14        SN74S74N
4A                14        74LS00N
4D                24        F68A10P (8227S)
4F                14        DM74LS74AN
4G                14        DM74LS00N
4H                14        SN74S74N
5B                14        DM74LS42N
5C                40        MOS6502A (3382)
5D                14        DM74LS02N
5E                14        WD1797B-02 floppy disk controller
5F                14        DM74LS04N
5G                14        DM74LS32N
6E                14        DMLS11N
6G                14        DM7438N
6H                14        74LS175N
6A,6B,6C,6D       18        MM2114N-25
6F                18        WD2143M-03
7A,7B,7C,7D       18        MM2114N-25
7E                14        DM74LS02N
7F                14        DM74LS04N
7G                4         NE555N
7H                14        DM7406N
8A,8B,8C,8D       14        DM74LS157N
8H                14        DM74LS00N
9A                14        DM74LS08N
9B                14        DM74LS42N
9E                40        MOS6502A (3382)
9F                40        MOS6532A (4981)
9G                40        MOS6532A (1382)
9H                14        DM74LS02N
10B               14        DM74LS04N
10C               28        MOS300542-001 ("REV A")
10D               28        MOS300543-001 ("REV A")
10E,10F,10G       14        MC3446AP
10H               14        DM7414N