Emerson Swingmate Cobra Portable Turntable

[Electronic M]

I bought a GE changer in that SAME plastic cabinet from an antique shop in the mid 90's...So some considered it antique then...

Sometimes the correct cart is NLA or costs more than the TT will ever be worth; in those cases specing out a sub can work.
I'd look for a Sam's for it. It may list the cart and if it doesn't then it ought to give you an idea of the input voltage expected from the cart. Any cart with that output voltage, the right styli for the record types it can play, reasonably close tracking force, and compatible mounting methods can be made to work.