This is a little neat thing, if you have a Commodore64 that requires 12volt VIC-II chips, and only have a 5volt VIC-II chip. Or you like the old 12volt boards yet love the image quality of the 5volt VIC-II chip. You can use it for testing of 5volt VIC-II chips in 12volt boards as well. Like if you only have a 12volt board, and have a bunch of 5volt chips that you need to test for some reason. Whatever the reason is, then I have made these two adaptors.
They are more like two sockets, stacked on top of each other. The 12volt Pin (number 13) is isolated on the bottom socket. On the top socket, there is a wire soldered between Pin13 and Pin40. This way, the 5volt VIC-II will not get any 12volt and nothing will fry.
Now. There might be something more that I can do. Like using a capacitor or something. Anyway.... Pictures.





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