I was playing Jr Pac Man with the Coleco Gemini Atari 2600 clone joystick / paddle and decided to try a paddle game, Circus Atari.
The short throw joystick is great for quick turns and reverses.
The paddle, however, was jitter city. The second controller did not jitter so I decided to clean or replace the paddle part.
Remove the four corner screws and the Center screw. Five screws. They sure didn't go cheap here as there is a sixth screw, but that is for the joystick. Leave that one in.
No clips, it just opens.
OMG, there is no potentiometer! Well, not completely true - it is like a big exposed potentiometer.
It is just a circuit board with a carbon strip that will change the resistance value.
I have seen them smaller, used for volume knobs on radios. If used a lot they wear down and cause noise when moving.
Is Coleco cheap, or brilliant? I am still not sure, but this makes cleaning a breeze, and replacement impossible.
So, out comes my ancient "Realistic® Tape Recorder Head Lubricant" and a bit of paper towel.
A quick wipe, put it back together...
And it is rock steady! A fixed paddle controller.
Tip: when using with Harmony cartridge, holding down the fire button changes the way the stick / paddle is read by the menu software.
The short throw joystick is great for quick turns and reverses.

The paddle, however, was jitter city. The second controller did not jitter so I decided to clean or replace the paddle part.

Remove the four corner screws and the Center screw. Five screws. They sure didn't go cheap here as there is a sixth screw, but that is for the joystick. Leave that one in.
No clips, it just opens.

OMG, there is no potentiometer! Well, not completely true - it is like a big exposed potentiometer.
It is just a circuit board with a carbon strip that will change the resistance value.
I have seen them smaller, used for volume knobs on radios. If used a lot they wear down and cause noise when moving.
Is Coleco cheap, or brilliant? I am still not sure, but this makes cleaning a breeze, and replacement impossible.
So, out comes my ancient "Realistic® Tape Recorder Head Lubricant" and a bit of paper towel.
A quick wipe, put it back together...
And it is rock steady! A fixed paddle controller.
Tip: when using with Harmony cartridge, holding down the fire button changes the way the stick / paddle is read by the menu software.