This is posted in a Technics group on Facebook. Looks like a guy in Sweden has several of these Panasonic semiconductor cartridges. EPC-450C ll
You'll need to log into Facebook to see this-
https://www.facebook.com/groups/1875199619466936/permalink/2922381464748741/?sfnsn=mo
You'll need to log into Facebook to see this-
https://www.facebook.com/groups/1875199619466936/permalink/2922381464748741/?sfnsn=mo