Mini trim pot to big potentiometer
I tried to wire in a big potentiometer in place of the mini trim pot that came with my heater , the trim pot looked to me like it only used 2 out of the three legs , so I wired in the big potentiom...
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Mobilesport wrote:
Yes , same value of 8kohm.
In one of the pictures shows the traces of the circuit board going to 2 pins , the third pin didn't look like it went to anything according to the circuit board traces .
I have the potentiometer wired up using the left and center pin , there wire to the trim pots 2 legs that looked like there used according to the circuit board traces , I checked resistance and I get 7.9kohm when fully counter clockwise, I get 6 millivolt when fully clock wise , maybe it does need all three pins but it sure doesn't look like it.
Thanks for posting
Ok, I wasn’t seeing the circuit board for what it was but now I do. I agree that it’s only using one end and the center tap.
Did you remove that pot or how did you connect the new one? 8k ohms should be 8k no matter the source but you can’t leave the little one in place or you’ll end up with them in parallel (4kOhm max).
Are there any traces on the top of the board?
