I know at least one person had asked about this in the past, so I'm posting this here.
I just hooked one of my 5200 controllers up to my multimeter (if you don't know, there are needle-like probes you can insert into the sockets of the plug) and determined the range of the horizontal pot to be from 500Kohms to around 190Kohms. Which fits in with Kenneth Simon's schematic that's been floating around that says the controllers uses 640K pots.
Hopefully this will be of use to someone (perhaps we could add it to the FAQ?)
I just hooked one of my 5200 controllers up to my multimeter (if you don't know, there are needle-like probes you can insert into the sockets of the plug) and determined the range of the horizontal pot to be from 500Kohms to around 190Kohms. Which fits in with Kenneth Simon's schematic that's been floating around that says the controllers uses 640K pots.
Hopefully this will be of use to someone (perhaps we could add it to the FAQ?)