Dating fender amp pots
Mesa Boogie is a registered trademark of MESA/Boogie Ltd.
Amp Repair and Studio Sound Electronics are not affiliated with these companies.
The code follows the format: = a number from 1 - 52 indicating the week of manufacture.
Remember, your amp is newer than the newest component.
Looking at serial numbers next to the ’60 5G5 brown Pro Amp for example, we see numbers ranging from 00001 to 02000, suggesting that there are 2000 of these amplifiers made in ’60.
Also found in various versions of the Blues Deville, Blues Deluxe, Hot Rod Deville, Hot Rod Deluxe.
If the code does not fit the above criteria, don’t force it and skew your dating results.
Some things are very obvious such as non-original or reconed speakers, non-original transformers, replaced pots, re-tweed, re-tolex, re-grill, etc.
If the pot is an original, it indicates a date before which the guitar could not have been built – so it’s always a good idea to have extra reference material around.
Finally, a word of caution: This method applies only to American made pots and not all potentiometer manufacturers subscribed to the EIA source code date.