I ran one of the Win cartridges (1977?). It needed a separate power supply to make it work. The performance was startling, a very dynamic and deep presentation with prodigious bass. My problems were channel imbalance and quality control. I owned three or four versions, each sent back with a promise it would be returned "working perfect."
Mine was serial number 6, so improvements may have been made at a later date, long after I gave up on the project.
Mine was serial number 6, so improvements may have been made at a later date, long after I gave up on the project.