I found a couple in the thread where I posted 01xxxxx serial numbers from 1991 and 1992 where I had pot dates to help.
Six Digit Serial Numbers Starting With 01xxxx 1991 1992
The 2 switches I found seem to date to 2-3 years prior.
The others were this YM-50 type.
Six Digit Serial Numbers Starting With 01xxxx 1991 1992
The 2 switches I found seem to date to 2-3 years prior.
The others were this YM-50 type.
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