Potentiometer Help? Answered

I am building a speaker out of two halmark music cards and i wanted to use a potentiometer to control the volume so i wouldn't have to do it on my ipod. I have build one before but did not use a potentiometer so i dont know how to wire it in. Other than the speaker im working on now and the speaker that I built before I have never built anything that involves electronics. What I need help with is what potentiometer I should get and how i should wire it into my project. Mostly I need to know how to wire it but if you could tell me what kind to get that would be great. I search high and low for about and hour but I could not find anything. I have included a diagram of all of the other speaker wiring. If you notice any problems with that also please tell me because i am sort of a noob at this. (I got a soldering iron two days ago) Thanks for the help.

Asked by DBMods 6 years ago


Where can I find a digital potentiometer?

I need a digital potentiometer for an upcoming arduino project. does anyone know where I could salvage one?

Asked by bravoechonovember1 1 year ago


Vintage Potentiometer to digital Potentiometer problems

I have modify a vintage wooded radio into a digital amp with bluetooth. It work great, but since I wanted to have the outside look I had no choices but to hack the 20k potentiometer on the digital amp (lepi 30$) to use the original Potentiometer.. the vintage one. I'm looking to find a way I can fix this Potentiometer so it would reach the 20k. The Potentiometer on the Lepi circuit board is a b20k for sure, but I don't know about the vintage one, there no info written on it. it's 2 questions for one thing, fix this volume so it won't blowout the speakers.   1- how to fix this ? I believe a resistor should do the job, but 'how much resistance needed? 2- if this is a resistor, well how do I solder it ? (6 wires, which one?) Any help would be greatly appreciated!

Asked by sebdub 4 years ago


Potentiometer knob collet work??

I have a 6.35mm smooth shaft Potentiometer and looking for a knob to go onto it. I've seen the set/grub screw type, i get how they work but worried about slipping. Also seen the collet type but not to sure how they clench down on the shaft. The shaft isn't threaded, as just a groove running along the top of it. Would it work like a conventional collet from say a dremmel tool?   

Posted by JonathanM221 1 year ago


Would this LED idea work?

Hello, I was thinking about this concept all day today, in which two potentiometers could vary the voltages to 2 of the 3 legs on a biocolored LED, thus being able to produce many different colors. I figure that I could hook up 3 volts, then (in parallel) hook up the two potentiometers to two of the leeds off the LED, the third being the ground. I'm not exactly an electronics guru, (and I hope that I had my vocabulary right in my explanation), but would this work? Also, where can I get some bicolor LED and potentiometers with knobs?

Posted by Jackhole 10 years ago


How to determine what size Audio Potentiometer is needed? Answered

Second attempt to get this question to publish.....sigh... In a small project with approximately (1/4 watt) .25 watt audio output into an 8 ohm speaker, what size Audio (I assume non-linear for audio) Potentiometer should I purchase? I tried a 10k but either I got a Linear (from what I've read) or 10k is too large. When adjusting to volume, I get nothing for most of the turn and then I get all of the volume. I can adjust to the volume I need, but it's very oversenitive. I would like it to gradually adjust the volume. Thanks

Asked by keydogstony 6 years ago


No, that doesnt look right... Potentiometer Expert Needed!

Hi All! My brother and I are building an e-bike and we THINK we know how to attach a throttle, but it might blow up the battery... if worse comes to worse then we have a toggle button we can install but it's not really ideal. I've attached a circuit diagram below of how everything goes together, but this is my thinking; With nobody touching the throttle, in my circuit, wont i have a current flowing from the battery anode via the potentiometer straight back into the battery cathode? This results in a huge waste of energy doesnt it? And the battery would drain even when the bike is stored in a hallway overnight.  So, does anybody know if this circuit will work? i need it to take energy from the battery ONLY when active.

Posted by Tsimbilakis 2 years ago


POTENTIOMETER WITH ESC

Hello everyone!  I currently have a project in development which is lacking only one step. I am making a DIY Electric skateboard powered by a Arduino UNO board. I have some leds in the back working fine, the esc and motor work when I adjust the delay to 1300 miliseconds.. But my problem is to control the esc and motor via de potenciometer. Right now my potenciometer only reads me the values from 0-1023 but nothing happens. I have a map in my code but nothing is moving when using the potentiometer. Can someone help me out to make the potenciometer work? Here is the link to the instructables page where I have all the materials I used and also the code! https://www.instructables.com/id/DIY-ARDUINO-SKATEBOARD/ Thanks in advance!!

Posted by MauroGB 6 months ago


Help on getting a softpot?

Can I get one on the original creator's site or do I have to order a $20 one from another site? Please help!

Asked by ikestarm17 8 years ago


How to use a potentiometer with this treadmill motor and speed controller?

Hi everyone I found this forum after doing a lot of searching on controlling the speed on a treadmill motor without using the big bulky digital display unit that sits on top of the treadmill. I bought a really nice Nordic Track for 10 dollars on Craigslist and I thought I would be able to figure out how to do this but apparently I was wrong. I have seen a lot of material regarding the MC-60 speed controller unit but nothing about the speed controller that came on the treadmill that I bought which was the MC-2100 Rev B. I will attach a couple of pictures of the board and specifically the wires coming from the display unit that go into the board. I have a 5k pot but I really dont know what to do with it and I am afraid to just start experimenting because I dont want to burn up the motor or the board. I would be happy to post any other pictures or add any other information that might be of help if anyone asks for it. Of course I would like to turn this little project into a lathe if I can ever get everything sorted out. btw the motor is a 2.25 hp cont duty. If the potentiometer wont work, I would love to hear about other ideas to be able to control the speed using this board and motor. Thanks everyone

Posted by wilsocn 6 years ago


Potentiometer help

Hello,I'm new here and pretty new to home audio/electronics projects so please bear with me here.I created my first clock amp a while ago using a Minty Amp kit, an Ikea alarm clock and some other bits and bobs. Here are some images:frontbackgutsI failed to take progress pics so couldn't create an instructable for the project but I plan to do that with my next one (I've had a lot of interest with people actually asking to have them made to order - which Mr Minty Amps, Bob Hickman, assures me is cool). Anyway, so I've ordered the parts to make another clock amp but decided to get some extra bits from Maplin.co.uk this time. In teh first amp I used a 250k guitar potentiometer for the volume but it's not sensitive enough and really only has three settings (full, quiet and silent). So, this time I ordered this 1k pot from Maplin. When the pot arrived it has a 50mm shaft which is too long for my project. I assume I can just trim the shaft down so long as I'm careful since it's only plastic. Is that right?Also, because it's not a guitar pot, the shaft is smooth and so the standard control knobs I have will not fit it. Does anyone know of a (cheap) type of control knob that will fit such a pot? I really don't want to have to glue a knob on there.Thanks for your help.

Posted by clockamps 10 years ago


Potentiometer to control DC motor speed

I have a 12 volt fan in my RV. It has a 1.6 amp DC motor. Would a 2 watt, 350 ohm potentiometer be suitable to use as a variable speed control? If not, what potentiometer would I need?

Asked by gaugeguy 3 years ago


How can i get reading from a potentiometer on a computer?

A Potentiometer, like the one in the picture I want to be able to get the reading of that on the computer...like numbers from 0 to 255(or whatever) Maybe through the serial post,if there is an instructable for this show me if not then tell me how

Asked by ReCreate 9 years ago


What type of potentiometer should I use to limit two .25W speakers?

I need to limit the volume of two .25W speakers with a small potentiometer.  The speakers will be played and powered by a standard MP3 player.  I need to know which type of potentiometer to use (power rating etc...) thanks! James

Asked by goldenmole 7 years ago


how can i set speeds with a potentiometer? Answered

Hi there, Im busy building a metronome to fit a machine im altering, (the board was totally fried and rusted through)  which also has a 6volt motor that spins in the front. I managed to find a potentiometer to control the speed of the motor and the metronome, but need to have set speeds on both of them. Is there anything that i can adapt to the potentiometers like a ratchet type system ? something maybe similar to a rotary switch that u click up and down? Im pretty new to all this, any help would be greatly appreciated. MGF

Asked by MrGreenFingers 6 years ago


Is there a proper way to mount a potentiometer to a perforated circuit board?

I would like to attach my potentiometer directly to my perforated PCB, and I was wondering if there is a correct way to do this. I was thinking it has something to do with the tabs.  I know I can just solder wires to it, and then solder those to the board, but I would rather not have it hanging loose. My pot looks exactly like this: http://angela.com/images/products/detail/370430015798.jpg

Asked by erikp 7 years ago


Automatic Potentiometer

Hi!  i need and automatic potentiometer it has to works max 5v i thouhgt about that and i can make it manually but it's to big and to weird  i want to ask you a form to make  it whit electronic components or a component ho can makes it i want to make a motor acelerates and desacelerates whith a soft curve and if its posible put the time of the cycle (example 40 seconds acelerat.... and .. desaceler...."cycle" or similar) Thanks Sorry for my bad english! Thanks! 

Posted by labalavermella 6 years ago


Looking for a specific button/potentiometer ... can you help please ?

Hi. I'm looking for a button/potentiometer ... best described as AIR CON control in car. Where the middle is a button (on/off) - not rotating and it's just the round edge that is turning/rotating. Preferably continuous rotation, so there isn't any min /max for the rotation. Please,  can you advice the proper "English" name for this part. Or a link to few examples ? THANK YOU in advance. Z

Asked by zholy 3 years ago


how to make digital potentiometer as mechanical potentiometor using arduino?

 connection between digital pot x9c103p  INC - Arduino pin * U/D - Arduino pin 3 * VH  - 5V *VSS - GND *  VW  - Output: 150 Ohm resistor -> LED -> GND *  VL  - GND *  CS  - Arduino pin 4 *  VCC - 5V and the code i used #include DigiPot pot(2,3,4); void setup() {   Serial.begin(115200); } void loop() {   Serial.println("Starting");    for (int i=0; i     Serial.print("Increasing, i = ");     Serial.println(i, DEC);     pot.increase(1);     delay(200);   }   for (int i=0; i     Serial.print("Decreasing, i = ");     Serial.println(i, DEC);     pot.decrease(1);     delay(200);   } } what is error in that and how can i make sthing varry between 1k to 4k if i have digital potentiometer 10k

Asked by britich 4 years ago


Can a 500Kohm 2W audio taper pot replace a 500Kohm 1W audio taper pot?

I'm sourcing parts for a Theremin (http://www.therealcharleshobbs.com/keppingertubetheremin/) and the parts list calls for a 500K Ohm 1Watt Audio taper potentiometer. I cant find one rated at 1Watt, but I can find one rated at 2 Watts. Will the 2 Watt option be an acceptable replacement?

Asked by smkoberg 7 years ago


Does anybody know where to get a 315 mm ( -10mm) displacement sensor in the UK? Answered

A friend of mine is looking for a 315 mm displacement sensor (potentiometric). I've tried google but I can only find results over several hundred euro... On ebay I can only find very short potentiometers or expensive laser based sensors. Anybody know any alternative suppliers?

Asked by FoolishSage 6 years ago


LED's, Resistors, and Potentiometers

I"m having some trouble with my LED and pot. My LED is a white 2.1v / 30mA My power source is 2 AAA batteries in series at 3v my pot says 500K on the back and three leads labeled 1, 2, 3 When my pot is at the off position, my LED is lit up perfect. but when I slightly turn the dial my LED starts to burn out and turns bright orange, and if I turn the dial further (Or let it sit for a minute) my LED turns bright red. I know that's ruining the LED... But what I'm dying to figure out is how do I know what resistors I would need to use with the pot, What's the math?

Posted by surlistyc 7 years ago


rgb led and 1 analog input? Answered

Im trying to make an rgb led light up in different colors to based on the analog input, for instance a "potentiometer" or equivelent like the lm324 controlling the input causes the input to go higher the red turns on then green and then blue progressively, i have some code worked up but am willing to work from scratch again, im working with the lm324 op-amp and an arduino w/328

Asked by redd.the.cat 6 years ago



Which poteniometer for 8 ohm speaker into TEAC AG-980 Amp?

Hi there, I have this 65W amp hooked up to two pairs of JBL Control Ones (8 Ohm) and one Fenword 8 Ohm Speaker. This uses A/B/C/D with the amp's multi zone function. The Fenford is in our bathroom area (it's a small gym) and I want to attentuate the volume just for this speaker. Any idea which potentiometer I can solder onto the cable to damp the volume?

Asked by bowlerboy1973 11 months ago


linear input to control a rotating servo? Answered

Im trying to build a circuit in which an input uses linear motion to control a rotating servo. the servo rotates clockwise/counterclockwise, and the input should have 3 inputs. turning the servo clockwise, turning the servo counterclockwise, and a neutral option so the servo doesn't have to always move; the neutral would be between the to rotation inputs. The closest form of an input I've found so far is a sliding potentiometer since it is controlled by linear motion. If there's a better input that can have those 3 inputs i'd love to know.

Asked by explosive_bagels 6 years ago


Shop made bench power supply.

Hello I have an atx dual sata 550 watt power supply... I have seen a bunch of instructables on here that allow just a few different voltage selections.. I have also seen a few with potentiometers to allow it to be more adjustable (dial up or down the voltage). That is what i want, i dont want to be limited to just three different options. S my question to you is, what type of potentiometer do i need to buy for this? And will a regular autostore purchased dashboard voltage meter window work? Also, what type of fuse/or breaker should i use?. Do i even need one? I also head i need some kind of "switch" for this as well. I found circut diagrams, i found list of items needed, but most of the instructables ihave found arent very specific on the specs of these extra items needed... Any help or direction would greatly help. Im going out to radio shack today and would love to grab the items needed to finish this priject. Thanks all...

Posted by SlickSqueegie 5 years ago


Can I add a pot?

Hi. I have a metal detector and it can be quite loud when it finds a target. Unfortunately, there is no volume adjustment on it. I don't have a lot of experience wiring pots into circuits so I wanted to ask before I try something and damage my detector: Can I wire a pot inline with the speaker? And if so, would I ground it to the negative side of the battery pack or would I ground it elsewhere? Thanks in advance!

Posted by fosgate3 8 months ago


how do you make a pressure sensor that the harder you press the faster a motor turns?

I am looking for some help with creating something that the harder you press on an object the faster a motor turns. i am very new to electric stuff but i am a mechanical engineer. my application is kinda like a pressure sensor basically im trying to design a device that the harder some one presses on the "pressure sensor" the faster an array of dc vibrators rotate. so its transfering pressure into vibrations by increasing energy to the motors. any ideas?

Asked by mwaits 5 years ago


digital potentiometer pid?

Hello, i have digital potintiometer u/d fgive you 100 step for 10k ohm so 10k for 100 step, i use it as outpu of pid control that read the distance and set point of required distance and make p and i and d equation based on differance and summation i want to use that pid to altitude contol of helicopter ,the resistor that i change as output is connected to throttle when i increase to max(5k) it stop and min 1k it go ?max speed so  this work   code arduino **/ #include #include SoftwareSerial mySerial(52, 9,true); // RX, TX int f=0; char *buffer; byte x; char array[27]; int counter=0; unsigned char r; int p=0; int last; int error=0; int wew; int required ; int kpipo; int n; DigiPot pot(22,3,24); void setup() {    Serial.begin(9600);   mySerial.begin(9600); } void reading(){   mySerial.println(1); while (mySerial.available()) {    x= mySerial.readBytes(buffer,1);    if(*buffer==0x52){    x= mySerial.readBytes(buffer,1);    array[0]=*buffer;    x= mySerial.readBytes(buffer,1);    array[1]=*buffer;    x= mySerial.readBytes(buffer,1);    array[2]=*buffer;    } } delayMicroseconds(220); } void loop() {     if (f==0){   delay(600);}   f=1; reading();   int Final_inch=(array[0]-48)*100 + (array[1]-48)*10 +(array[2]-48) ;   float Final_cm=Final_inch*2.54;     Serial.print(Final_inch);   Serial.println(" Inch ");   //Serial.print(Final_cm);   //Serial.println(" cm "); required =29; error = required - Final_inch; //Serial.print(error); //Integral = Integral + Error; // accumulate the error integral //} //else { // Integral=0; // zero it if out of bounds //} kpipo=1; p =  (error * kpipo); // calc proportional term // I = //Integral*kI; // integral term //int D = (Last-Actual)*.1; // derivative term wew = (error/2) ;// scale Drive to be in the range 0-99 Serial.print(wew);//(wew) if (abs(wew)>400){    wew=0;} if ( wew >99) {  wew=99; } if (wew wew=-99; } n=abs(wew); if (wew     pot.increase(n);     delay(500);   } else { // depending on the sign of Error     pot.decrease(n);     delay(500); } last = Final_inch; // save current value for next time }

Asked by britich 4 years ago


Potentiometer and motor isn't working properly

Hello, I'm fairly new to electronics and i am currently working on project involving an adjustable motor. basically the circuit is just a nine volt battery going through a potentiometer and into a 6-9 volt motor. however the motor only spins when the potentiometer is turned to max. the potentiometer is a 10k.

Posted by kanp1 1 year ago


(SOLVED) Mounting Slide Potentiometers

I need help for a project I am soon to begin work on ('ible coming soon). It will involve several switches and potentiometers mounted on a piece of hardboard. The switches and rotary potentiometers I have all have washers (or whatever you call the hexagonal things with screw-like threads on the inside) to secure them in place. The slide potentiometers don't. My question is this: How would I mount the slide potentiometers? Thanks in advance, ~H4ZZ

Posted by __DELETED__ 7 years ago


arduino control of digital potentiometer

Is it possible to use my new Ardy board to control a 1-wire potentiometer that will, in turn, control the pwm output for a high-power LED?The POT is here. The lights are REBELS @ 700mA.THe POT will be run in "non-parasitic" layout.

Posted by Tweac-it 9 years ago


Does anybody know of a Potentiometer that can be set digitaly but operate passively?

I wonder if this technology exists. Imagine the following situation: During setup/calibration I can power the circuit and "tune" my potentiometer using some type of digital interface. (e.g. I2C) However, during operation the device is fully passive and will not have a source of power. Thus, the potentiometer would need to "remember" the settings and operate passively. Currently I use standard potentiometers, but tuning them manually is way too cumbersome and not practical. Ideas?

Asked by Kapiau 3 years ago


Where can I find a replacement potentiometer for the MakerShield?

One day I brought my Arduino with the MakerShield to show it to some of my more "electronically-apt" friends. However, my other friends took it, (somehow) thought it was a BopIt, and started screwing around with it. Before I could do anything about it, they ripped off the potentiometer. I was wondering where I could find a replacement potentiometer.

Asked by TheWaddleWaaddle 6 years ago


which potentiometer to use for time lapse motor

I was looking at a camera slider and this motor for a time lapse slider: http://www.amazon.com/gp/product/B00436ULLA/ref=ox_sc_act_title_6?ie=UTF8&smid=AUUK2J4ODEV5F I read somewhere online that someone used a rotisserie motor and hooked it up to a camera slider for a time lapse of about 40 minutes, but if I wanted to make the motor move even slower for a longer time lapse, can I hook up a potentiometer somewhere in the rotisserie motor? If so, what type of potentiometer should I get? Would this work: http://www.amazon.com/Parts-Express-10K-Ohm-Potentiometer/dp/B0002KRE20/ref=sr_1_1?s=industrial&ie=UTF8&qid=1355018144&sr=1-1&keywords=potentiometer

Posted by dylanp1936 5 years ago


How to solder potentiometer to speaker? Answered

Hi,the speaker for my alarm system is too loud, so i soldered this adjustable resistor (that i plucked out from my headset) on to the speaker. but somehow, the adjustable resistor only works as a resistor, i cant use it to control the volume.how can i solder it so that it works ?and btw potentiometer = adjustable resistor ?thanks

Asked by fujiapple 8 years ago


replacing 20kbx2 potentiometer with fixed resistors for max output at all times?

Someone gave me an amp, potentiometer is busted. im not in a position to order a new one, and i really dont care to. id like to wire this up with resistors instead so that it reads full open all the time. the pot is for a car amp im just going to use my input source to control the volume anyways. schematic or detailed instructions would be lovely. thanks guys.

Asked by cdb816 1 year ago


10-15 AMPs w/ potentiometer.

So, as a chemist I thought it would be fun to save some $ by making my own hot plate & magnetic stirrer. I am using Thermoelectric cooling device (TEC) to heat my stirrer, and a small DC motor to stir. Here's the problem - if you've ever taken highschool chemistry you will know that a hot plate with a stirrer has a potentiometer for Temp & Stirring speed - I'd like to do the same! Problem: the TEC takes anywhere from 5-20 amps in operation @ 12 volts DC. Adding a potetiometer to this in parallel is out of the question - I can't fine a potentiometer that can handle greater than 2 watts. ( i may just be looking in the wrong place)... So.. all in all I'm looking for nearly 140-170 watts of power for my heating plate. (The motor will be using much less, almost negligble to the heating plate) So, if I can't put a potentiometer in series for power regulation, how can I get my temperature to vary? If this is going to require a circuit board, I may need some help with a design :)

Posted by GreenD 8 years ago


LED Slider Indicator

I don't know very much when it comes to electronics. All I know is how to make a simple circuit. Conect bulb to battery, battery to swich, swich to bulb. I need some help making a circuit bord with an on off swich, 5 LED's & a sliding potentiometer. What I like this curuit to do is, turn on swich, the first led lights up. I push the slide potentiometer up or down & the four other LED's light up or down with the slider.

Posted by elkaddalek 3 years ago


Need help with arduino code for running motor with potentiometer and pushbutton.

I am running a motor in one direction for agricultural purposes. I am currently using some code I found to change the sporadic nature of the motor with a potentiometer and PWM. I found code which will use the potentiometer and this is successful and currently in use (built the whole 12v switch circuit using the Tip122). Now I want to be able to use a push button to retain the sporadic nature of the potentiometer when the push button is pushed once and have the motor be constant when the push button is pushed a second time.  I am stumped about how to do this, I am a beginner to the arduino code and trying to get better. I was wondering if someone might have an answer to how to program this. I've included the current code below. int potPin = 2;    // select the input pin for the potentiometer int ledPin = 13;   // select the pin for the LED int val = 0;       // variable to store the value coming from the sensor void setup() {   pinMode(ledPin, OUTPUT);  // declare the ledPin as an OUTPUT } void loop() {   val = analogRead(potPin);    // read the value from the sensor   digitalWrite(ledPin, HIGH);  // turn the ledPin on   delay(val);                  // stop the program for some time   digitalWrite(ledPin, LOW);   // turn the ledPin off   delay(val);                  // stop the program for some time }

Asked by daleruisky 6 years ago


How do I make a dimmer for my christmas lights?

I have some x-mas lights(the incandescent kind, not LEDs) hanging on the ceiling in my bedroom but they are a little too bright sometimes, so I thought it would be fun to attach some sort of dimmer switch to them. Do I need anything special or can I just hook up any old potentiometer I can find in my junk bin?

Posted by cannedham160 9 years ago


How to wire a simple cooling fans circuit for a laptop stand, need an Expert help. Answered

Hello everyone ! I am planning to build an extreme cooling laptop stand and I am encountering a problem during my tests phase. What I want to do is to wire together: - 2 x 92mm computer fans (12V - 0,6 Amp) - 1 "B1K" potentiometer (or 2, one for each fan) - 1 "O/I" switch (or 2, one for each fan) - 1 12V power adapter (12V - 50-60Hz - 1000mAmp) When I try to link 1 "B1K" pot with the 2 fans mounted in parallel, first the pot is almost useless (only 5% of its full course is useful) and second, it starts to heat and smoke... What should I do ? Use 2 pots ? Or put in some resistances ? I am new with electronic and get lost with current / voltage / resistance... I thought this circuit would be pretty simple, but when I saw the smoke, I was frightened. Any help / advice would be greatly appreciated. Thank you very much.

Asked by Openyourmind 6 years ago


RGB LED Driver/Controller Help?

I officially feel inept.  As I am more of a wordsmith than electrician, this should come as no surprise to me.  Anyway, I have 6 RGB LEDs that I am embedding into a DIY background for my aquarium.  I bought RGB, LED strip lights which came with a controller/driver which I have installed in my canopy.  I thought it would be cool to place 5mm RGB lights encased in siliconed capsules in the caves and recesses of my background.  I have already wired and tested the LEDs underwater and all works as planned...individually.  To my question:  I have enough know how to complete the simple circuit with a cell battery, but I want to control the LED's, inexpensively, with some type of knob control (potentiometer??? I have many from an old classroom) so that I can "color-mix."  My research seemed to indicate arduino as my only option.  I'm not really interested in that.  So?  Any thoughts?  A schematic even a dummy like me can follow with six RGB LEDs?? Thanks for the help.  I will be posting the background build once I am through. Sincerely, Eric

Asked by mretuck 6 years ago



How do you choose a potentiometer? Answered

I'm trying to use a potentiometer as a variable resistor does, how do I determine the rating for the Pot?

Asked by joeAMERICA 8 years ago


potentiometers: How thick is the enclosure allowed to be, how can I fix them inside the enclosure? Answered

So in a nutshell: I'm following an instructable where potentiometers are used which i was never working with before. Those potentiometers are covered with some potentiometer-knobs which are between the enclosure and the potentiometers. And now I have some questions ... a) how do I fix / secure the potentiometers inside the enclosure so they don't move when I turn them, but the potentiometer-knobs do, and b) how thick is the enclosure allowed to be when I use 500K, 5% tolerance potentiometers? This is so frustratingly confusing.

Asked by Skelpolu 6 years ago


best price for trimming potentiometer

Elecsound can offer almost full range of lead type cermet Trimmer Potentiometers 3296 9mm Square Multi-Turn Trimmer Potentiometers 3006 Rectangular Multi-Turn Trimmer Potentiometers 3266 6mm Square Multi-Turn Trimmer Potentiometers 3269 6mm Square Multi-Turn Trimmer Potentiometers 3323 6mm Square Single-Turn Trimmer Potentiometers 3362 6mm Square Single-Turn Trimmer Potentiometers 3386 9mm Square Single-Turn Trimmer Potentiometers 3329 Round Single-Turn Trimmer Potentiometers For above items,we can have the competive price in the market,and fast delivery,if you need any of them,pls contact with us freely by email.mollie@elecsound.cn

Posted by elecsound33 11 years ago


Potentiometer for 20v??

Hello! I am trying to build a bench power supply from a laptop power supply and i need a potentiometer capable to handle 0-20v. I have tried many times with different potentiometers but they all start smoking and later starts burning :( i don't know that much about elektroniks circuits so be gentle :) Please help me!

Posted by WaNa_Cookie 4 years ago


How to determine which potentiometer I need for this project? Answered

Hi all,  I am building a laptop cooling pad with external power supply, and I would like to include a potentiometer so I could control the speed of the fan rotation. However, I am not sure about the resistance of the potentiometer. I am using the adapter from an old HP printer. Here are the values: +16V, 500mA And I am using the Cooler Master SickleFlow 120 fan. 12VDC, 0.35A

Asked by djokenzi 3 years ago