What kind of power cord does my RCA need?

[Electronic M]

I have one of those buried somewhere. A girl I knew as a kid had one in her room, and when I found one at the curb I kept it for the memories.

IIRC the power cord is non-standard. If you figure out which pins are for 120v AC and which are for 12V DC what I'd do is find a pair of individual push on connectors that fit over the pins connect a cord to them, put some tape around the bases of the pins and some Vaseline on the pins you won't use then cover the connectors and the unused pins in silicone to make a new plug....I have done this once to make a 12VDC cord for a Sony RTR that only had a 120VAC cord but could accept either....In my case it helped that the 12V pins had the same spacing as a boom box 120V cord so I could use one as a base.