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...
Forum Discussion
Did you measure the old pot while still in the circuit? There's a very good chance it's not an accurate measurement if that was done; the surrounding circuitry will affect the resistance reading. It does depend on how the circuit is arranged.
I would be mildly surprised if it's indeed an 8k pot; that's not a particularly common value. I'd expect a larger value most of the time. However, it's certainly not beyond the realm of possibility.
(It is also possible, though not at all likely for a simple thing like this, that there are more than just the top and bottom layers of a circuit board, and some traces on the inside where they are hard or nearly impossible to see. This is almost certainly a two-sided board, though, and not a four or more layer board; no need for the extra cost of inner layers for a heater controller gizmo.)
I would be mildly surprised if it's indeed an 8k pot; that's not a particularly common value. I'd expect a larger value most of the time. However, it's certainly not beyond the realm of possibility.
(It is also possible, though not at all likely for a simple thing like this, that there are more than just the top and bottom layers of a circuit board, and some traces on the inside where they are hard or nearly impossible to see. This is almost certainly a two-sided board, though, and not a four or more layer board; no need for the extra cost of inner layers for a heater controller gizmo.)
