Just got myself a Sony D-5 "Discman" (putting it in quotes because it wasn't called as such yet), I need a power supply for it, it hasn't arrived yet. I know it's 9 volts, but I need to know how many mA I need it for, apparently, or so the Shack saleswoman said (someone at the Shack knowing something?? And it's not 1982??)...One of those cases of me knowing alot about certain things, but not others, this is one of those areas.