Before the digital revolution.. What gear was most common?

[Trance Explorer]

Ive been thinking about this a lot lately.

Ive been into electronic dance music for some time now, buying records for 10 years.

I was into the classic hard trance on labels like Bonzai, Tunnel, EDM
the hardcore on Ruffneck, Rotterdam and Mokum
The old uk rave on Suburban Base, Formation, Moving Shadow

All this was before the digital revolution, all made using Hardware.
No vst plugins and effects.

So what pieces of equipment were most common?
for example Roland 303 + 909, Roland Alpha Juno...

But what else?
Synths, Sampler, Analogue Mixer, Distortion, Reverb, Delay, EQ, Compression effects units?

I hope this question makes sense and somebody knows the answers

What im thinking is that maybe i can pick up some of this equipment second hand