I remember with great fondness the Christmas when I received my first Lego Technic sets. It must have been 1985 or 1986. I had some other Lego sets but these were something else. I seem to recall that I wasn't old enough for them according to the age range on the box but my parents thought I was sufficiently mature.
I think I had this set:
and I may also have had a supplementary set:
I learnt a lot about mechanics from this - for example that (contrary to my initial expectations) if you made a loop of an even number of gears, it would not create a perpetual motion machine. Also, that if you made a loop of an odd number of gears they wouldn't turn at all.
I think I also had a pneumatic set at some point, probably this one, and probably for a birthday in one of the following years:
and also a motorized set. But looking at the lego catalogues which came with each set, what I really lusted after was this robot:
(I was a big fan of robots) and, especially, this car:
I had friends who had these desirable models, and it was always a lot of fun to the houses of these friends and play with their toys.
Like your post! Oldschool Sets from the 80s right?