Gwrmd911

Hello I recently acquired an Atari 2600 game copier. I am an avid collector of Atari products . My question is I would love to try it out and see if it works. I have powered it on and I’ve looked at the board and don’t see any capacitors that look bad or any connections. I’m trying to find where I could purchase blank cartridges? I’ve seen many links to homebrew sites when I contact them I don’t get a response. I believe it’s set up to copy 4K cartridges from the literature I read on it I would appreciate any input someone could provide thank you GWR