I love your choice of sound effects on the Alan Parsons Project, such a great piece all around!!! How do you get those?? record yourself or samples??? If you do record yourself, do you ever do outdoor recordings and what converters do you use and how do you power them??
Sound effects in the period you are talking about to early 80s (presumably) are before the word "converters" came into being. I would record on batt op cassette machines and in later years on Sony FI using internal converters. Some FX were from sound FX libraries, but generally speaking my own origination.