They are basically just LCD shutters that worked with their own range of graphics cards and produced a 3d image by offsetting the scanlines and showing each eye only one set of scanlines. At least, that is my understanding of it anyway. Was pretty impressive back in the day, and am tempted to put something together so I can give them a go again.

These are probably my most obscure bits in my collection. A pair of Elsa Revelator 3D glasses from around 1999, and a tandy/bandai electronic gold game from around 1980.

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Cheers both, have ordered a stepdown converter that will be here tomorrow. Good to know the megadrive one works too as I think I have a spare knocking around.