I have an old small stone with one knob and color switch. It uses the ac adaptor and does not have an led indicator. I cannot find anything that appears to be a serial number but there are numbers on the bottom of the pot. They are P0200 and 1378037. I was just wondering approximately what year mine was made if anyone has knowledge? Thanks.
The pot is a CTS pot manufactured the 37th week of 1980. So the pedal would have been made after that. I can’t give an exact date because you never know exactly how long the pot was in inventory before it was used.
