Resistance box, potentiometer What are resistance box and potentiometer? What are their relations and differences?

Both resistance box and potentiometer are rheostat
The resistance change of resistance box is jumping, and the resistance change of potentiometer is mostly continuous
The resistance value of the resistance box can be read from the resistance box, but the resistance value of the potentiometer is unknown

How is 5K potentiometer welded into the circuit? 3296 series. Does 5K potentiometer indicate that the maximum adjustable resistance is 5K?

3286 series adjustable resistance is very common. There is a mark on the shell. The resistance value of the two far end feet is fixed 5K. The resistance value of the middle foot can be adjusted, and the resistance value of either side can vary from 0 to 5K

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