You can find the serial number in the battery compartment inside the pedal. You can also date pedals by the sticker on the bottom of the pedal, they made several different colors but its kind of pointless for dating and more of a novelty.

When was my Boss pedal made?

The first batch of Boss pedals were made in October, 1977 and featured the code 6300 for the whole month of production. The second month (November, 1977) were labelled 6400, the third (December, 1977) were 6500 and so on.

When did Boss stop making pedals in Japan?

Boss compact pedals were originally produced in Japan, until circa 1990 when production moved to Taiwan.

Is Boss ce5 digital or analog?

The chorus you always wanted! There is a mild confusion as to wether the CE-5 is digital or analog and both are correct: The BOSS CE-5 started its life as an analog pedal, but after 2001 the circuit was changed to digital.

Are all BOSS pedals made in Japan?

Boss compact pedals were originally produced in Japan, until circa 1990 when production moved to Taiwan. Earlier units came with a metal screw securing the battery compartment; later models retained the metal screw, adding a plastic knob for tool-less battery removal.