What Makes a PDP-11/35 Tick?

It turns out to be 441 ICs. 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.

Source: loomcom.com