captainblack, on Mon Sep 1, 2008 9:39 PM, said:
i recently bought an old pong system and iv been having some trouble wih it, its not an atari one, its called APF tv fun im pretty sure, but i was hoping id find some help her anyways, when im playing it the paddle often jolt up and down randomly, its not to big a problem and its still playable but it just gets annoying when it screws you up every once in a while. i think the contacts for the knobs are just dirty but i took it apart and they werent exposed, i thought id get some feedback before i do anything else to it because i really dont know alot about it and dont want to break it. any help is apreciated, thanks.

From what you've described, I agree that the potentiometers in the paddle are in need of cleaning.
Take a look around this site for the keywords "paddle" and "jitter" to get some ideas on how people go about cleaning potentiometers in the Atari 2600 paddle controllers. Your potentiometers are likely to be very similar.