Dreamcast analog stick hack?

[Sidgoop]

Okay, I've searched all the threads on hacking the analog (hall effect) stick on a Dreamcast pad, and all I could find were basic tutorials on hooking up a switch to the sensor.  I have, however, found some analog joystics (one potentiometer per axis), and was wondering how I could connect these to the hall effect sensors.  Thanks in advance for any help. 

[Sidgoop]

Never mind.  I finally cracked open my Mad Catz controller, and found out that it uses potentiometers on the analog stick instead of the Hall Effect sensors. Huzzah!  The only bad thing is that this must be a newer revision, because there are no easy access solder points for the D pad and buttons.  Oh well, I'll take that trade off.

[pmc]

I have, however, found some analog joystics (one potentiometer per axis), and was wondering how I could connect

I'd be interested in seeing what you wind up putting together. I left the analogs on my hacked MadCatz pads unconnected from my CP and consequently have to attach a real controller to play games that require the analog stick. This is generally OK because most of those games aren't quite right for a cabinet setting anyway, but sometimes I really wish I could play some of those games with custom controls (like a flightstick perhaps).

-pmc

[Sidgoop]

Well, I got my analog stick wired up, but there must be a difference in potentiometer resistance.  I tried a few games, and it doesn't have the full range of motion as it originally did.  In all fairness, the new analog sticks came out of a controller for a security camera system, not a true analog arcade controller.
Does anyone know what the stock value is on the Mad Catz one?

[HaRuMaN]

You'll need to take the original pots and measure their resistance.

[northerngames]

I think there 5k but not 100% sure

[Sidgoop]

Yeah, about the original pots - they kinda got ruined when I was taking them off the board.  Oops.  I've got a 5k laying around my parts bin somewhere, and I'll give it a go.  The challenge will be trying to replace the weird sized ones on the dinky joysticks I'm using.