For example, if I If you want to activate a piston with a lever and connect the two with redstone, the redstone stops after a while. E.g. If the distance is 20 blocks, the redstone stops lighting at 10 blocks or does not work anymore. If I insert a redstone amplifier between the tracks, the redstone continues, but the redstone does not deactivate when I pull the lever again. So everything after the redstone amplifier still works and does not go out. How do I solve the problem?
Put the repeater in the other direction
Repeater
The in put (from the lever) on one side and the out put (to the bulb, lamp, etc.) on the other side. DO NOT connect both sides (aslo before and after repeating), otherwise it will not stop activating.
The signal stops after 15 blocks, so simply set a repeater after 15 or 14 blocks. The repeater has a running direction and so it reinforces it up to 15 blocks 😉
Use a repeater (amplifier in German) and set it so that its arrow points towards the piston.