need help with wireing thses pots - Page 1
Forum section: electronics / projects

author: electronics technician
author_rank: Regular Contributor
timestamp: March 18, 2014, 10:34:23 pm
content: the one on the left is a 10k and the right is a 100k i would appreciate all the help

author: Monkeh
author_rank: Super Contributor
timestamp: March 18, 2014, 10:41:13 pm
content: Pin 1 is the wiper for the outer element (pins 2 and 6), pin 4 is the wiper for the inner (3 and 5).

author: electronics technician
author_rank: Regular Contributor
timestamp: March 18, 2014, 11:17:55 pm
content: so is it safe to say that pin 1 is the output pin 2 will be the input and pin 6 gnd or do i have it all wrong and is it the same for the other one thanks for the reply btw

author: electronics technician
author_rank: Regular Contributor
timestamp: March 19, 2014, 04:31:39 pm
content: how do i apply that pinout to this schematic vvlets label the two pots pin 1 through 6 from left to rightplease help thanks

author: Hideki
author_rank: Frequent Contributor
timestamp: March 19, 2014, 09:29:08 pm
content: Quote from: electronics technician on March 18, 2014, 11:17:55 pmNo. It's just a double potentiometer. For each half there are three related pins, and that's it. There are no inputs or outputs or ground connections.What you connect the pins to depends on what you want to do!Say you want to use it as a volume control. The most common way is to set it up as a variable voltage divider. Do you have an understanding of how that works?One end of the resistor will be ground and the other will be the input, and the output is taken from the wiper.For volume controls, the tradition is that you get the lowest volume (ideally completely off) when it's rotated all the way to the "left", or counter-clockwise.Q: Do you understand what pin (2 or 6) the wiper (1) will be connected to in this case? What signal would make sense to connect to that pin -- the ground or the audio coming in?When rotated all the way to the "right", clockwise, you would expect the highest volume. Answer the Q above again.As for the schematic, I'm sure you will get a lot more help if you redraw it yourself.

author: electronics technician
author_rank: Regular Contributor
timestamp: March 19, 2014, 11:04:12 pm
content: i tried the pinout as 1 wiper 2 input and 6 gnd but im not getting bass y tried the output on a 4 ohm speaker and it worked but im getting volume control from both the terble and volume i know treble is for tweeterswith regards to your question i put the output on pin 1 input on pin 2 and pin 6 wolud be groundNOWif i redraw the schematic with the pinout that i got i still wont know how to match the two togetherbtw i tried the circuit with a lm324n ic instead of the lm 741 op amp and it worked so that means i did something right lol i will keep tinkering with it untill ity is perfecti would say the audio goes in pin 2 which i have as the input ans the gnd pin 6 pin 1 output signal

author: Hideki
author_rank: Frequent Contributor
timestamp: March 20, 2014, 01:29:26 am
content: Since that is your answer, my advice would be: Forget that schematic and the tone control... COMPLETELY.There is something fundamental that you don't yet understand.Your new assignment is this: Using one of those pots and some wires, design a volume control.No other components will be used. No opamp, resistors, capacitors, transistors or power supply.Having it work on a single channel is fine too. Once that works you can try stereo.

author: electronics technician
author_rank: Regular Contributor
timestamp: March 20, 2014, 04:42:09 am
content: i am not going to forget it because i got it working except the bass part but i will try different values of capacitors to get different bass responsesand btw if you dont know how to do something improviseim not going to forget about it because you said soi will try different combinations to get it right so thanks for the advice unfortunately im not takig it

author: Monkeh
author_rank: Super Contributor
timestamp: March 20, 2014, 04:56:55 am
content: You can lead a horse to water..

author: electronics technician
author_rank: Regular Contributor
timestamp: March 20, 2014, 05:07:31 am
content: but you cant force him to drink

author: Monkeh
author_rank: Super Contributor
timestamp: March 20, 2014, 05:08:14 am
content: Quite.Enjoy your process of throwing parts at it until it does what you want.

author: electronics technician
author_rank: Regular Contributor
timestamp: March 20, 2014, 12:25:04 pm
content: thanks loli will enjoy ittheres only so many combinations you could try and not get it to work so imma do that