Hi, I have an old "black label", made in Taiwan DS-1 with the Toshiba chip, and I'd like to know the year of production: I found this serial number decoder... http://www.bossarea.com/serial/sndecoder.aspx My serial is 146017: says "The unit with serial number 146017 was produced January 1982." Is it possible? Made in Taiwan in 1982? When Boss moved production? Thank you all!