Power supply question for some older systems

[k8track]

Recently I acquired some older systems:

Emerson Arcadia 2001
Atari Stunt Cycle
Atari Ultra Pong Doubles
Atari Video Pinball

None of them have AC adapters. I do have a universal AC adapter; however, I'm too chicken to give it a try without knowing which voltage or polarity to set it to for fear of frying a system. Anyone know offhand? What are the proper voltages and polarities for each system?

[retrogmr]

The Stunt Cycle, Ultra Pong and Video Pinball should work with a 2600 power supply...

you're own your own with the Arcadia :P

[k8track]

Retrogmr,

3 out of 4, thanks, man! Anyone know about the Emerson? Don't wanna play Russian Roulette...

[Captain Wrong]

http://users.erols.com/tiltonj/games/tech/power.html

Should answer all your questions.