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Another grafonola question

Posted: Tue Jan 27, 2026 8:06 am
by DanP58
Good morning
I have another question about my Columbia Grafonola. I got a couple different answers to my first question about the cup like washers I found inside the machine . Know does anyone know what the purpose of these 2 grommets on the back of the machine . I think they’re brass ( at some type metal) with three prongs/claws . Any help would be great appreciated
Dan