Synth and pedal dating / Boss
Boss serial number dating
Enter the serial from your Boss and we read it against Boss’s own scheme to tell you the year it was built.
2 serial formats
Can't read a digit? Type ? in its place. Looked-up serials are kept, never tied to you. How it works
Your answer appears here
Type the serial or code from the instrument. We read it as you type.
Example Boss serials and how they read
Made-up serials in each of Boss’s formats, read by the dater above.
| Serial | Reads as | Format |
|---|---|---|
| 661234 | May 1986 | Serial month code (1980 on) |
| ZC12345 | Dec 1990 | Serial month code (1989-2010) |
How Boss serials date
- Serial month code (1980 on)
- Serial month code (1989-2010)
More on Boss serial numbers
Where to find the serial
On the base of the pedal. On a 1980s serial the first two digits carry the date; from 1989 the second letter and the first digit do.
When the serial has no date
Where the serial cannot give a year, the parts inside can: the potentiometers and other components carry an EIA date code that the pot and speaker code reader decodes. This is one of the makers the synth and pedal dater covers.