homebrew controller help?

[lotuswrench]

So, I picked up an Atari Flashback 2 the other day, and was thinking I could rig it up as something of an oldschool arcade-esque game table, complete with arcade sticks. Looking at the specs and pinouts of the controllers, and having disected one, it looks pretty doable.

 

I then did some reading about the paddles, which also look pretty rigable (just looks like a rheostat connected to a few of the pins unused in the normal controllers, with the button wiring left as it is. The thing is though, I cant seem to find any information about the rating of the rheostat. Just guessing the part could end up with a paddle that only moves halfway, or one thats overtly tight (quarter turn makes the paddle max out)). I was wondering if anyone here knew where I could find the information I'm after.

 

Thing I might also take a look at the power/reset/difficulty buttons, and see if I couldn't through switches on the top of the game table (for ease of op).

 

Anyways, any suggestions/information would be awesome. Thanks.

[Hornpipe2]

http://www.classicgaming.com/vcsp/Step%20b...p%20Hacking.htm

 

Scroll down to the bottom of Step 4. There's a nice pen-on-napkin schematic for how to wire up your paddle. You'll need a 1 Megaohm potentiometer and a .068 uF capacitor (actually, I think the capacitor is already in the system and you just need the potentiometer hooked up.)