Sorry. Nothing jumps out. There are several things to check though. First the resistance between the two outer terminals. Then between the center and one end measure the resistance at 25% 50% and 75% of rotation.I can't seem to figure out what the specs are for this potentiometer. These numbers have to mean something....but they don't to me.
I'm going to guess then it would be a linear pot because it was from a treadmill? I will do the testing tommorow however. Thank you.Sorry. Nothing jumps out. There are several things to check though. First the resistance between the two outer terminals. Then between the center and one end measure the resistance at 25% 50% and 75% of rotation.
If it's a linear taper pot then if the total resistance is 10K you'll measure 2.5K 5K and 7.5K.
If it's not linear then it's what they call audio taper or logarithmic and the values will change slowly in one direction increasing quickly at one end.
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Not always. The circuit that generates the PWM might actually require a log pot in order to create linear velocity. Or they want you to have finer control over the lower speeds and once you are at the run speed a slight difference isn't noticeable.I'm going to guess then it would be a linear pot because it was from a treadmill? I will do the testing tommorow however. Thank you.
Once you are at run speed, huffing and puffing your guts out and your vision narrows from lack of oxygen to your brain nothing is noticeable!Or they want you to have finer control over the lower speeds and once you are at the run speed a slight difference isn't noticeable.
Neat. I do plan on testing with meter as suggested.R1379443 - Manufacturer is CTS manufactured in the 43rd week of 1994.
The other number does not match their manufacturing code though so I cannot tell you anything more from that number. Are you sure there is not another number somewhere on it?
You have already gotten great advice from @jcdammeyer. Measure it and from there you should be able to find a replacement.
Outside terminals also measuredJust measure the two outside terminals, if your measuring the wiper (center terminal) to one of the left/right terminals those numbers seem pretty far off to be 10k (I def could be wrong) 6ohm on one side and 6k ohm on the other is a ways away from 10k
Outside terminals also measured
I would be more tempted to sub in a 5K pot. It depends what the wiper is connected to. Like Susquatch said. Just guessing. I'd measure the voltage on across the two outside pins of the pot when it's connected into the circuit.I believe I have seen 5.7K pots in the past. Tolerances are usually 5 to 20%. If it is supposed to be 10k, that's out more than I'd expect.
Anyway, three terminal pots like this are often used as a voltage divider. One end is at circuit voltage or some reference voltage and the other is usually at ground. The wiper let's you get any voltage in between as a reference for some other usage. When used this way, the total resistance isn't really a big deal a 10k pot will usually work just as well as 20k or 5k.
Without a circuit diagram, it's just guessing.
A search on line for treadmill speed control schematics and I find this: Notice 5K pot