sid from 50hz/220V c64

Parts Questions
1

hi, i see that a lot of the c64s selling on ebay are from england, meaning that they run on 220V@50hz.  does this mean that the sid chip from one of those machines would not work in the usa (120V@60hz)?  in other words, are all sid chips the same (letting the machine itself figure out how to use it) or are there special sid chips for each power/freq rating?

bottom line: if i buy a sid chip from england, will it work in my USA box?

thanks

2

Yes yes. SID is the same.

3

the sids from england on sale at the moment are sometimes faulty (2 of us now on this forum bought faulty sids from the guy..) they are advertised as new but are in fact from old c64’s

the sellers name is bubbobo (or something similar)