POT question

[HELModels]

I'm trying to figure out how to hook up a potentiometer in parallel with another resistor. This pot has 3 leads, a,b,c with c being labeled ground on the case. no matter how I hook this thing up I only read 10k. I turn the screw CW until it hits the stop, reads 10k. I turn it CCW about half way back, reads 10k. I turn it CCW until it hits the other stop, reads 10k.

I am measuring the resistance by touching positive multimeter probe on a,b leads and negative probe on c/ground lead. I realize there is no polarity to worry about. I have also measured by placing one probe on a lead and other on b,c with same results.

Could the slide thing be stuck? Or am I hooking it up wrong by connecting a,b leads to + and c lead to ground? Or should it be a lead to + and b,c leads to ground?

[hovercrafter]

A B C

First make sure your meter is set on a scale that is true to the pot. Check between terminals A and C to make sure you have your 10k reading

Now move your terminals to A abd B and move slowly, reading should change smoothly, then go to B and C and it should change slowly. If not the pot is bad

Hope this helps
Jamie

sorrry my little ascii pic didnt take, it stripped the spaces

[Mr.RC-CAM]

Is the pot installed in a circuit or are you measuring just the raw part? Is the value marked on the pot?

I've never seen a pot marked with a ground on its case. Are you sure this is a pot and not a position encoder of some sort?

RC-CAM

[HELModels]

It sure looks like a analog ground symbol over pin 3. Other markings indicate that it is indeed a 10k pot.

I need a new one now anyway since I snapped one of the leads off. testing this thing was done in circuit and out.
___ A__________+
|
|
|--->B
|
|
|___C
|
|
|
------
----
-

Above is a very crude picture of what I am trying to do.

Assume what I have is a working 10k pot, how do I wire it up so that resitance through the pot varies 0-10k?

[Comatose]

wire to A and B or B and C

[HELModels]

That's what I thought. Found a different value pot and it functions as suggested, but is wrong value.

When it doesnt work, it doesnt work. Simple as that.

Thanks.