Re: fender circuit #'s question Bill Bolton (billbolton@acslink.net.au) 12/15/97 8:40 PM > I'm wondering what the fender circuit > numbers signify. The BF/SF numbers work like this... The first two alpha characaters are the revision WITHIN the month. AA, first design revision AB, second design revision AC, third design revision etc The last two numeric charcaters are the year of the design, and any numeric characters between the first two alphas and the last two numerics are the month within the year. So. AA763 would be the first design for July 63. AB1265 would be the second design for December '65. Cheers, Bill