Gibson guitar pot dating


11-May-2020 07:28

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.The EIA assigns each manufacturer a three-digit code (there are some with one, two or four digits).When dating an instrument by the ‘pot code,’ keep two things in mind: The potentiometers must be original to the piece (new solder, or a date code that is off by ten or more years is a good giveaway to spot replacement pots); and the pot code only indicates when the potentiometer was manufactured!Please post any comments, particularly bugs in the user feedback section.

Factory Order Numbers (FON) with a letter from 1935 to 1941.

You can read on the bottom of the pots of these guitars 128KΩ or 250KΩ with a 3-digit number.

Here too, the first digit is the last digit of the year and the second and third digit the week.

Sometimes there is a space or dash between the manufacturer code and the year/week code.

The potentiometers (pots) on the guitar offer a possibility to date the age by their source code.Stamped on every potentiometer (volume and tone pots) is a six- or seven-digit source code that tells who made the pot, as well as the week and the year.



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