I think I'm kind of insane for having a 2600 Jr when a 7800 would do perfectly fine, just on the off chance the 7800 cannot boot the Supercharger.
I heard the Supercharger is the test of whether you have a fully compatible 7800 or not. Maybe i should try that tonight and see whether or not I'm insane for keeping a 2600 Jr.
EDIT: My vote is inaccurate, I also have a Gemini, but not the original Gemini Controllers, RF adapter, Wye adapter, or power cord. Luckily Atari controllers and Power Plugs and the RCA cable, and the RCA-> RF cable work fine, and the Wye adpater is for using 2 Gemini controllers as 2 paddles in one joyport.
Maybe I can sell it to a friend who has "collector's edition consoles" for the Dreamcast, N64, and beyond. He says he has more systems, but he doesn't have an Intellivision, An Astrocade, An Odyssey 2, An Arcadia 2001, a Supercharger, a 5200, and possibly a 7800. And the only reason he has a Colecovision is because a relative of his took his Vectrex and Colecovision back when he was a kid after his parent's divorce, (he also lost the Sega 3D glasses becuase the same neighbor of ours who borrowed ourt Colecovision, that I had to go and recollect, forgot to give them back.) and I gave him one as a gift when I was able to complete a set in multiple thrift store finds as a small payback token of appreciation for winning me an Original Xbox in 2003-4 ish, and an Xbox 360 around 2008 ish, through his great gameplay of both Life to the Power of X, and Bomberman Live 360.
When (looking more like "If" these days,) I get married, I'll pick him as my best man, and I'll give him and myself matching Vectrexes, but that assumes I get a good enough job where I can easily afford $600-800 for 2 working ebay Vectrexes. Such a special occasion deserves a special gift from his past from before I knew him.
He wins on physical consoles, I win on formats.