Based on the serial number analysis, it appears to have been manufactured in July 1986, and it's in surprisingly good condition for its age. The power adapter and batteries have been tested and confirmed to be working. The guide bush rubber has been replaced with a new one for this listing. It supports an ACA adapter, so if you don't have one, you can use batteries, a 12VAC adapter with guaranteed operation like the FREE THE TONE FA-W1220D-JA, or a BOSS adapter that can supply power. Manufacturer...BOSS Type...Electric Guitar