The Autogram beat hell out of everyting competing in the lines of a rotary fader console. Several aftermarket outfits made replacment modules for them. Some were built by Collins, they have black Alondined modules, while the Plano built modules are chrome finish. They're internally the same. You might at some point want to tip the module chassis up and use a nutdriver to snug up the nuts on the screws which hold the module sockets in place. Over time, they may loosen and not ground as well as you'd want. The ones I had used Leightener audio transformers on the output, and were good from nearly DC to nearly blue light. Get it working correctly, and do a -10dB frequency sweep starting at about 30Hz. It's an eye opener.
Incidentally, I was bitching at the old gent who ran the company at an NAB about the end plates on the IC-6, which were straight across the top instead of being machined to fit the sides of the console. He told me the end plates on the IC-10 were the most expensive part of the console, the machining of them cost a fortuna.
The inputs could be transformer couipled or jumpered, depending on what you stuffed in the socket. Treat them to some Caig elixir once every year or so, and they will run till the capacitors dry out. Replace, and keep on going. You aren't likely to bust the thing.