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I got these from a PCB of G90-0577..I bought it from taobao
but it's not in good condition..only some of the switches are fine..other switches were broken..
most of the switches we can see now have some numbers behind the switches..but the numbers are big(as far as I know)..maybe 500 or some thing..but these numbers are small..no more than 10..these numbers can not show the year of production, they only tell you which matrix made this..for example cherry made 1000 matrix for the switches..these three switches are made by number 1,2 and 3 matrix..I'm not sure if I made myself clear..hope you can understand my poor english..
Where you got those ?
Appreciate for share information