10k pot help

[Robots86]

Ive got a 10k pot im wiring after a usb dac. The pot has 3 pins but not a clue which is which. And do i wire to and then back off those same pins? Thanks

[FreddySalted]

The 3 Pins are wired either direction depending on which way you'd like the pot to work

Pin1 to Speaker +
Pin2 to Audio Input +
Pin3 Common Ground (Speaker- & Audio-)

if the pot works in the opposite way to how you'd like it to work then swap the wiring to pins 1 & 3

Check this image for an example
http://oldshop.cbgitty.com/wp-content/u ... eJack1.jpg
The Mono Jack is your USB DAC and the Piezo is the Speaker

This will only give you a Mono output, for Stereo (if you're including a headphone jack) you need a 5 pin pot and it's wired like this
http://cdn.instructables.com/FUP/8II1/G ... MEDIUM.jpg

[Tango]

Can you not use two 3 pin pots back to back... ie.. have one on bottom and the other flipped on top and glue the two together?

Assuming that the middle pin (2) is the wiper and the other 2 (pin 1 & 3) are the resistor?

Dale

[fcib]

Mono works fine with 3 pins.

If you use PWM, put the pot after the filter and before the amp.
If you use USB, put the pot after the usb and before the amp (if you used one).

Simply take a multimeter:
1. turn the knob all the way to one side
2. check resistance on pin 1 and 2.
3. turn knob all the way opposite.
4. check resistance on pin 1 and 2.
5. It should be 0 when turned one way and 10k when turned the other (or close to those numbers).
6. Repeat with 2 different pins if that doesnt work (but its usually the middle pin+another pin)

Then cut your audio wire. Solder your pot in the gap with each end on the pins you tested earlier.

Good luck!

[Tango]

Mono works fine with 3 pins.

If you use PWM, put the pot after the filter and before the amp.
If you use USB, put the pot after the usb and before the amp (if you used one).

Simply take a multimeter:
1. turn the knob all the way to one side
2. check resistance on pin 1 and 2.
3. turn knob all the way opposite.
4. check resistance on pin 1 and 2.
5. It should be 0 when turned one way and 10k when turned the other (or close to those numbers).
6. Repeat with 2 different pins if that doesnt work (but its usually the middle pin+another pin)

Then cut your audio wire. Solder your pot in the gap with each end on the pins you tested earlier.

Good luck!

I was thinking for stereo, two 3 pin pots glued together, tie pin 3 on one pot and pin 1 on the other (remember they are flipped back to back and sandwiched together) to ground, and pins 2 on both are audio L+ and R+ and pins 1 & 3 are audio out.

Dale

[fcib]

Mono works fine with 3 pins.

If you use PWM, put the pot after the filter and before the amp.
If you use USB, put the pot after the usb and before the amp (if you used one).

Simply take a multimeter:
1. turn the knob all the way to one side
2. check resistance on pin 1 and 2.
3. turn knob all the way opposite.
4. check resistance on pin 1 and 2.
5. It should be 0 when turned one way and 10k when turned the other (or close to those numbers).
6. Repeat with 2 different pins if that doesnt work (but its usually the middle pin+another pin)

Then cut your audio wire. Solder your pot in the gap with each end on the pins you tested earlier.

Good luck!

I was thinking for stereo, two 3 pin pots glued together, tie pin 3 on one pot and pin 1 on the other (remember they are flipped back to back and sandwiched together) to ground, and pins 2 on both are audio L+ and R+ and pins 1 & 3 are audio out.

Dale

Yep, you could do that.