Asked 7 years, 4 months ago. Active 7 years, 4 months ago. Viewed 43k times. Edit So basically potentiometer is something like this. Please correct me if I misunderstood the concept. Tomek Tarczynski.
Tomek Tarczynski Tomek Tarczynski 1 1 gold badge 2 2 silver badges 7 7 bronze badges. Add a comment. Active Oldest Votes. Rev Rev 9, 6 6 gold badges 36 36 silver badges 75 75 bronze badges. Your questions: 1 What would happen if ground was switched with the output? Unless I'm missing something those two statements are in contradiction.
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Featured on Meta. Now live: A fully responsive profile. Linked 7. Related 3. Strip any wires to expose the copper by using wire cutters. Acid-core soldering wire is used for plumbing. Part 2. Connect a ground wire to the chassis from terminal 1 on the left.
Tin a small length of wire by tapping the exposed part with your soldering iron and flux. Once the wire soaks up some flux, lower the wire to connect it with the exposed metal part on terminal 1. Press your soldering tip to the connection to join the wire to the terminal.
Solder the other end to any piece of exposed, non-painted metal surface on your electronic device. Tip: You can use a breadboard if you want to test your wires before soldering them. Wire your middle terminal to the output circuit on your device. Tin another length of wire the exact same way and connect it to the middle terminal on your pot. This means that the signal goes out of the electronic, into terminal 2, then back out again of terminal 3.
Consequently, terminal 2 has to connect to the port that sends the original signal out of the device. On a guitar, this would mean wiring terminal 2 to the output jack. On an integrated audio amplifier, this would mean wiring terminal 2 to the speaker output terminal.
It is where the pot sends information back to the device. Tin an exposed length of soldering wire and place it directly on the terminal. Go to the back of the port and look for the exposed metal opening on the back of the knob or cable connection.
Solder the wire directly on to it to finish connecting the pot. On a guitar, this would mean wiring terminal 3 to the input jack. On an audio amplifier, terminal 3 would connect to the input channels. Part 3. Connect the voltmeter's terminals to the input and output terminals on the pot.
Turn the voltmeter on and turn the dial to feed a signal. Turn the knob on top of your pot to adjust the signal. If the signal reading on the voltmeter goes up and down when you turn the knob, your potentiometer works. Adjust the signal on your device by turning the shaft. Turn your electronic device on and feed a signal to the pot by playing some music, hitting a guitar note, or turning a light on.
Twist the shaft to the left to turn the audio or light down. Twist the shaft to the right to raise the volume or level of light. Twist the shaft all the way to the left to turn the output off. Add a knob by sliding it over the potentiometer if you want. You can install a potentiometer with the shaft bare and exposed if you want. But if you want to upgrade the aesthetic of your potentiometer, you can always get a knob.
There are tons of knobs on the market designed to slide over the shaft of a pot and make them look better. Did you know you can get premium answers for this article? Unlock premium answers by supporting wikiHow. Ricardo Mitchell. Support wikiHow by unlocking this expert answer. Yes No. Not Helpful 1 Helpful 1. Include your email address to get a message when this question is answered.
Look at the letter in front of your voltage to determine the taper. Different pots taper, or modify, signals differently. The 2 most common kinds of pot are linear and logarithmic or log. Linear pots, which have a letter A or LIN in front of the voltage, move a signal up or down in a straight line. Logarithmic pots, which have the letter B or LOG in front of the voltage, change signal with at an angle, with the highs and lows being very sensitive to changes in the shaft.
Helpful 0 Not Helpful 0. When you build an audio amplifier, the potentiometer can be used to protect against voltage surges, when connecting something to that amplifier. This can be done by connecting the middle terminal to the amplifier input, terminal 1 or 3 to the ground, and the remaining terminal to the signal source. This way, the pot will always keep the amplifier input somewhat connected to ground - no voltage surges will occur, and no separate bleeding resistor needed.
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