What Makes A PDP-11/35 Tick?

This is what makes a PDP-11/35 or PDP-11/40 tick. It turns out to be 421 ICs. Impressive!

I needed to know what TTL ICs I might need to order replacements for, so I decided to tally up exactly which ones go into making a KD11-A CPU. This information comes straight from the PDP-11/40 Engineering Drawings, which list a summary of ICs used in each module on the first page of the module's drawings.

It may be useful for someone else, so I figured I'd post it here.

IC KY11-K M7231 M7232 M7233 M7234 M7235 TOTAL
7400       3 10 7 20
7402       7 3 7 17
7404         7 7 14
7410 5         3 8
74123         3 4 7
74150       3     3
74151       2     2
74153   17   1     18
74157   4   1   1 6
74174   12 8       20
74175     1 4 1   6
74181   4         4
74182   1         1
7420           4 4
7430           2 2
7450           2 2
7474         7 13 20
74H00   2   14 6 2 24
74H04   4 3 11   4 22
74H10   2 3 8 4 4 21
74H11   1   7 7 4 19
74H20   2   7 5 1 15
74H21       4 2 1 7
74H30   1   5     6
74H40       1 5 3 9
74H50       3 4 4 11
74H52       5   2 7
74H53   4   3 3 2 12
74H55         1 1 2
74H60   1   2   1 4
74H61       1   1 2
74H74   1 9   5 1 16
DEC 23B00A2     1       1
DEC 23B01A2     1       1
DEC 23B02A2     1       1
DEC 23B03A2     1       1
DEC 23B06A2     1       1
DEC 23B07A2     1       1
DEC 23B08A2     1       1
DEC 23B10A2     1       1
DEC 23B11A2     1       1
DEC 23B12A2     1       1
DEC 23B35A2     1       1
DEC 23B40A2     1       1
DEC 23B41A2     1       1
DEC 23B42A2     1       1
DEC 3101A   4         4
DEC 380   8     4 1 13
DEC 8242   3         3
DEC 8251       6   2 8
DEC 8815   9   6 4 5 24
DEC 8881   13     6 5 24
TOTAL             421