The source-date code found on pots and speakers gives the manufacturer and date (roughly) when the components were made.
It may have been some time before the part was installed at the factory, but it still provides a good approximation of when the gear was made.
Finding the definitive date or year of manufacture is not always going to be possible but this guide will give you a few tips to help you narrow it down.This is especially helpful on (less popular) gear that doesn`t have reliable serial#`s or other information to date them.The source-date code will signify the earliest possible date that the instrument or amp could have been made. Besides, no article in the Dating Fender Amps by Serial Number series would be complete without some interesting information, n’est ce pas? I promise the tables will still be there after you finish reading.