I was given a Small Clone — told it was from the 80s but it’s def not vintage. It has a red LED, socketed Philips HEF4047BP & MN3007 chips, JRC4558D and LM358N op-amps. But it has the old style 1/8″ power jack, not the Boss type barrel connector on the newer RIs.
Blue 3PDP switch that goes through a cut-out in the circuit board (labelled EC-4600).
So, is there a timeline somewhere? It’s def a RI of some kind but not 2000s. Was there a 90s RI that matches these specs? Or does anyone know how to read the date codes off the ICs?

[img]https://i.imgur.com/27ts9HA.jpg[/img]
[img]https://i.imgur.com/NTuCL7n.jpg[/img]
[img]https://i.imgur.com/8EI0pvD.jpg?1[/img]