Classic Hifi Care

Can anyone tell me which company built my RCA stereo theater changer. Was it build by RCA, or some other company?

Model on bottom of changer:

RP224-128

Thank you,
Bill

My guess would be that RCA built their own changers when that one was built.

Edit.....According to a post on "the big forum" by Larry Hillis, RCA built their own changers starting in 1953. Hope this helps.