Seymour Duncan Convertible 100 Serial Numbers

 

There seems to be no apparent rhyme or reason to the numbering scheme Seymour Duncan used for their serial numbers. I might, over time, be able to see some sort of pattern that may indicate year of manufacture. This project is in it's infancy... Listed below are the serial numbers and corresponding year of manufacture that I have rounded up so far.


0384 8433 = 1984
0675 6433 2 = 1984
0699 6433 2 = 1984
0836 8434 2 = 1984
0767 8434 2 = 1984
0854 8434 2 = 1986
A10079 = 1985
A10520 = 1985
A10669 = 1985
A10779 = 1985
A11492 = 1986
A12371 = 1988
BZ062491 = 1987
BZ061226 = 1987



There is clearly three different numbering systems that were in place. I'm not exactly sure what that means, but based on the information gathered so far, it appears that there may have been three different locations where the amps were manufactured since some dates overlap in each series of serial numbers. However, I do not have enough serial numbers yet to rule out human error.

 

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