Dating potentiometers

26 Jan

Some companies don't have specific guitar pedal dating information on their sites, so try to visit the support section of their website and see if customer support may be able to give you insight on dating their electronics.

It can't hurt to send an email to the company and see what happens.

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Interestingly, the other pot is dated '370', which at three weeks later, is mid-September 1960.

Most pots (potentiometers) on guitar pedals and guitars subscribe to the Electronic Industry Alliance (EIA). A pot is basically the component that controls volume and tone on your guitar or guitar pedal. Pot codes give you the build date of the pot only not the pedal or guitar.

Therefore the code on the pot can be dated as long as the company producing the part was in the EIA. So guitar pedal dating by pots is basically used to get a roundabout date for your equipment.

These are codes often seen stamped on components found in US made vintage tube equipment.

This list is circa 1955, and some codes have been reassigned or added since that time.