Wow, I love all of your answers people! I hope you allow me to suggest something different then
To me, everything you described is what I'd consider vintage. The term 'retro' seems to be thrown about a lot, hell, even by me and in my company. But retro, to me, represents something that wants to remind you of the old, something which has the appearance, reminiscent of old, not which is genuinely old.
I support this claim entirely anecdotally, though I'm sure some design historians and/or language spoil-sports (to refrain from using ideologically based epithets) will agree. We tried pitching one of our arcade machines to a burger joint in Zagreb, which seemed like it would be the absolutely perfect place. The bar was littered with stuff which we identified as 'old timey', or, you, as we did, might call it retro. It even had an arcade which we knew was not working, so we thought, why not offer one to him that will definitely work. But the owner was adamant that he explicitly wanted the original (I do believe they were Space Invaders) fixed. We then realized, the stuff around the bar wasn't 'old timey', it was old. Vintage, if you will.
'Semantics', you might say. I just thought it was interesting because it took me by surprise.
So, with that in mind, I'd consider Analogue SN machines, for example, retro. Also, like someone already said, turntables.