Atari 2600 questions

Hi all... I just picked up an Atari 2600 with 3 catridges but there's no power supply or joysticks. I'm not complaining though, as it only cost 5 Pounds from from a charity shop here in London! So, the predictable question is what are the specs for the power supply? (i.e. voltage, current and polarity of what appears to be a 3.5" jack). Also can i use the joysticks from a ZX Spectrum or TI-99/4A with it? If not, can anyone give me details of the pin-out so i can wire up my own? TIA...Nick. PS I've been having a little surf trying to find this info, and in my travels came across a site that has a 2600 emulator for download on various platforms! It's at <http://www.users.zetnet.co.uk/ahornby/v2600.html> -- Nick Challoner nickc(a)ladyland.demon.co.uk Aviation photographs at: http://www.ladyland.demon.co.uk "Bother" said Pooh, as he deleted his root directory.