That sounds better bet than trying one blind. I figured 9v, but was still leery.

I'm not sure what to do with my Odyssey 300. I don't really collect Pong units. I have a telstar arcade, and that's enough Pong for me. Well, except for my Atari Video Pinball....

If I buy an AC for it, and toss it on Ebay, I think I'd be lucky to get the price of the AC adapter back out of it!