Burnt out resistor on multimeter. I need help (more in info in post below)2yr ⋅ Gazed1 ⋅ r/electronic_circuits
Help identifying parts (post one of possibly several, details in comments)1yr ⋅ rtuite81 ⋅ r/electronic_circuits
I need help reverse engineering this board so I can make a new one.2yr ⋅ Zoti ⋅ r/electronic_circuits
Noob question. I want to test plant growth with far red led. How should I use this LEDs?2yr ⋅ lanxt ⋅ r/electronic_circuits
Does anyone know where to buy a handful of plugs with a built in fuse like you find in Christmas lights?3yr ⋅ earthmachinistc137 ⋅ r/electronic_circuits
smt fuse that limits device to single use. Can By-pass be used?1yr ⋅ BruceYap ⋅ r/electronic_circuits
what is the output voltage of this Darlington pair? I'm new to this.1yr ⋅ Lifes_Wakaranaii ⋅ r/electronic_circuits
I designed, built, and coded a custom whole-home power monitor with sub-second resolution. All free and open source! Details in the comments.4yr ⋅ decreddave ⋅ r/electronic_circuits
22 ohms ÷ 4 = 5.7 can someone tell me if I can do this or why it would be bad idea?1yr ⋅ rumplestiltskinss ⋅ r/electronic_circuits
Hey, total noob here! Anyone know how to fix this burnt trace?2yr ⋅ deadeye_0 ⋅ r/electronic_circuits
Here is a model of an Arduino Uno circuit I made for an upcoming video. How do you guys like it?4yr ⋅ robottronics ⋅ r/electronic_circuits
I was supposed to convert SOP to POS form. I did this. The answer isn't supposed to have the B+C term. What am i doing wrong?. Could someone please help me with this.3yr ⋅ hairsh_23 ⋅ r/electronic_circuits
Can somebody please tell me what the value of this resistor is? Or a direct replacement?8mo ⋅ Grarbled_grundle ⋅ r/electronic_circuits
I guess there’s an up-side to growing up with a father who was a consummate hoarder. NOS Rat Shack components!4yr ⋅ SubSonicgroove ⋅ r/electronic_circuits
Ok I asked this before but this time I made it a little cleaner. Does this linear power supply look safe?4yr ⋅ wolfix1001 ⋅ r/electronic_circuits
I’m an absolute beginner at circuitry here. I recently got a knockoff Arduino starter kit, and I can’t even get the LED to light up. The wires are all on the correct row, I’ve made sure the LED is facing the right direction. Am I missing something?4yr ⋅ ItIsTiwsdayMyBois ⋅ r/electronic_circuits
This is a mp3 circuit that i want to attach to a music box i am making but the buttons are very small. is there a way to attach bigger buttons in place of these 4 buttons??1yr ⋅ veer460 ⋅ r/electronic_circuits
I am supposed to discharge this battery in pulses. Initially the gate is at 0 V. When I applied the 5 volts to the gate, my battery is supposed to discharge while the MOSFET is on. But when I do this, my MOSFET got burnt and my battery voltage first reduced and then began increasing. Please help3yr ⋅ Responsible-Dealer21 ⋅ r/electronic_circuits
What would cause these mosfets on a dc motor driver board to burn out please? The heatsync used to be black2yr ⋅ 8bitBytesBack ⋅ r/electronic_circuits
Im trying to run this circuit from a 12v bench supply to get a 5v output. But I'm getting a voltage thats sitting around 6.95v according to my multimeter? Any ideas why?3yr ⋅ billyredwood0 ⋅ r/electronic_circuits
Can anyone tell me what this black component with two leads is? Or what the black box at angle below it is?2yr ⋅ No-Student-3786 ⋅ r/electronic_circuits
I'm just starting to learn electronics (I'm 16 and I absolutely love it). I know this shouldn't happen, but why is it? Should I scrap this transistor? Others work well btw, running on 5V3yr ⋅ RedFlag_ ⋅ r/electronic_circuits
Anyone know how to extend the range on this EVM chip? I have the antenna that came with it, I’m not sure where to attach it3yr ⋅ KevinTheEpicGuy ⋅ r/electronic_circuits
I need help fixing my parents electric oven from like the early 2000s1yr ⋅ ReligiousStripper ⋅ r/electronic_circuits
My friend gave me his dualshock 4 that wont turn on and I find this on the conductive film. Any tips on how to fix without replacing the film?1yr ⋅ LeninCy ⋅ r/electronic_circuits
Nintendo switch dock blown ic, I'm trying to fix this dock but I don't know what kind of ic is this, anyone knows?3yr ⋅ Locodan ⋅ r/electronic_circuits
A, B, C. Which is pos and which neg? This is a 5V 700ma DC input. Can I safely replace it with a USB-C charge input ? (I lost the power supply :/ )3mo ⋅ rickpickel ⋅ r/electronic_circuits
I have this pizeo module that I use with esp32 to get vibration data. Can anyone identify these components and what it do?3mo ⋅ Negative_Ad8892 ⋅ r/electronic_circuits
Where do I get this component and whats the name of it1mo ⋅ Born-Salamander-2227 ⋅ r/electronic_circuits
Can someone explain how this LED flashlight works without the need for a resistor using x2 AA battery and it doesn't get fried? I measured the voltage for the LED using MM and it shows ~ 2.35v1wk ⋅ dreamer_2142 ⋅ r/electronic_circuits
Advice needed, new card on top has an extra strip, can this be removed?3yr ⋅ picketcricket ⋅ r/electronic_circuits
Need some help trying to figure out what this piece functions as. Recently found out it’s not only a relay module but can’t find what else it does. Please I’ve been stuck on this for a while.2yr ⋅ Rustery ⋅ r/electronic_circuits
Lately my external hard drive has been acting up, there seems to be a problem with the port losing connection to the cable..opened it up and found this brown component, scared it might've burned out somehow...what do you think?3yr ⋅ shorty00745 ⋅ r/electronic_circuits
Quite possibly the ugliest fume fan build (IMO)... but it does the job. 😉4yr ⋅ SubSonicgroove ⋅ r/electronic_circuits
Is there a way to fix this? The small rings came out and now I cant solder it back. Will it work if I take out the yellow wires and solder them to the other to connections above them?3yr ⋅ _EBOY69420_MR ⋅ r/electronic_circuits
Looking to repurpose some old surround sound speakers. Wondering what the white block is called and what they were used for2yr ⋅ Shankles_Mcnasty ⋅ r/electronic_circuits
Hello - looking to build a AC powered OR Battery powered small emulator cabinet. Some questions!1yr ⋅ MG5thAve ⋅ r/electronic_circuits
What component is this BB801? on circuit look like an unlabeled SMD resistor. Please.2yr ⋅ valenteespinosa ⋅ r/electronic_circuits
Does my circuit doesnt have enough power to drive a relay?10mo ⋅ rizkiaswangga ⋅ r/electronic_circuits
Wife's hair straighteners stopped working, blown fuse and capacitor?2yr ⋅ Rezarf26 ⋅ r/electronic_circuits
Does anyone know how to access/open the output ports on this thing? The push-handles only seem to open the N, ground and L ports.3yr ⋅ DaleTheOriginal ⋅ r/electronic_circuits
I need a circuit that, when a button is pressed, it provides a single pulse after a delay. This is a circuit I tried before. It worked, but it couldn't supply enough current to run a tiny motor. Please help. :(3yr ⋅ [deleted] ⋅ r/electronic_circuits
anyone know how to find V1? I am new to this and I did not understand it very well4yr ⋅ Niconchetumare ⋅ r/electronic_circuits
Trying to order a part for a tv I had just picked up. Thought it would be an easy blown capacitor however non buldge and all seem to be fine. Noxious smell coming from the yellow things circled. Anyone know what they are so I can order more? Board I'm working on is 890-PF0-5501. thanks in advance!4yr ⋅ csaute433 ⋅ r/electronic_circuits
Was using a plastic fold-up table as a workbench for a while. Didn’t take long for the wobbly-ness to get annoying so, I built this over the last couple days. Wormy Maple, Mahogany, Oak and pine scraps leftovers from other projects. Anyone else build their own workbench?4yr ⋅ SubSonicgroove ⋅ r/electronic_circuits
Help - Will this work for LED to stay on when button pushed and turn off when button pushed again?4yr ⋅ lanzasub ⋅ r/electronic_circuits
Does anyone help me in the resolution of this RC circuit? Tomorrow I have an exam and this is the only part I don't know how to do4yr ⋅ nebelschwaden ⋅ r/electronic_circuits
i dont fully understand how this circuit works, can anyone explain in depth?4yr ⋅ quad5914 ⋅ r/electronic_circuits
Was this portable aircraft transponder tracking unit possible in 1985 ? From the Narcos:Mexico TV show. Movie prop or real thing ?4yr ⋅ fried-raptor ⋅ r/electronic_circuits
I pulled this from a 110v light bulb. How would I power it with DC? I tried hooking up 12v to the +/- terminal in the middle. No dice. any idea what voltage is needed?1yr ⋅ Nomynoms ⋅ r/electronic_circuits
I tried looking for this part, but I can't find it. I'm just trying to find a bluetooth transmitter ic.3yr ⋅ wolfix1001 ⋅ r/electronic_circuits
I am confused about how to make the feedback system for this EV charger in a MATLAB simulation. Any help will be appreciated. Nobody in my college is helping me.3yr ⋅ blindingXlight ⋅ r/electronic_circuits
Help in this exercise pliss! Using superposition theorem, calcule dissipated power in Rl3yr ⋅ HandHot498 ⋅ r/electronic_circuits
I thought this was a Tantalum capacitor but the markings don't seem right, which is the working voltage?5yr ⋅ MyScorpion42 ⋅ r/electronic_circuits
Hi there, does anyone know what this thing is that blew up in my PSU?4yr ⋅ XxBrosMarioxX ⋅ r/electronic_circuits
Chasing this part off a robot. Possibly a relay, can't find it on Google? Comes off a motor drive IC2yr ⋅ Wizfizzle ⋅ r/electronic_circuits
My monitor is broken due to humid air. When I open it, I found the broken IC. Can anyone help me identify this IC?4yr ⋅ Muhammad841 ⋅ r/electronic_circuits
Is it a good idea to solder a broken bolt on terminal?3yr ⋅ nomadicspacemonkey ⋅ r/electronic_circuits
This is a chip that plays a soundbite - is there any way to remove the storage chip and change what song it plays?5yr ⋅ jstallard42 ⋅ r/electronic_circuits
Help needed with paper shredder infrared transmitter/receiver...4yr ⋅ ReenigneArcher ⋅ r/electronic_circuits
Can someone explain why this 330 ohm resistor brings 5V down to 0V? Isn’t the job of the resistor to only reduce the voltage slightly?4yr ⋅ Dead_Eyed_Enquirer ⋅ r/electronic_circuits
Hey experienced circuit boarders... I have a quick question regarding an rc car build I'm working on. I found this old board from a few years back. I have since forgotten where the wire leads go. Can someone tell me where the +/- leads go for the battery, drive motor, steering, and antenna? Thx3yr ⋅ Present-Reply-9005 ⋅ r/electronic_circuits
These led arrays all are bad (from 1995 motorhome inverter monitor remote panel). Getting 3.8v to them but is that too high of voltage and what toasted them all? Or just dead with age? The 20-pins are HDSP-4830, other is HLMP-2620. Both seem rated for max 3v. Adding pic of back in comments.3yr ⋅ PD216ohio ⋅ r/electronic_circuits
Made a Dc regulator from two parallel 7815 ICs for a solar panel4yr ⋅ heyloitsinvo ⋅ r/electronic_circuits
I have an electrical issue. Does anyone know what these are called? And if I replace them with them burned out like that, can I fix my problem, or do I need to replace the whole board?5yr ⋅ Tewjayz ⋅ r/electronic_circuits
Can someone explain how this oscillator circuit works? I don't understand why R9 is there. Apologies for the mess5yr ⋅ eoneillmor ⋅ r/electronic_circuits
Opened up a 90's Phillips radio in an attempt to find a fuse because plugging it in the wall did absolutely nothing. Now I'm in a dead end. Any advice?5yr ⋅ Volga99 ⋅ r/electronic_circuits
Repairing psx system, damaged joint that I don't know the name of and don't know how to fix.5yr ⋅ wolfix1001 ⋅ r/electronic_circuits
Can’t figure this lamp out. Plug is fine, the wires themselves seem fine and my bulb is grand. Any ideas why it won’t turn on?4yr ⋅ Meewol ⋅ r/electronic_circuits
Trying to solve this currents with linear algebra and I'm hitting a road block, any suggestions on how to solve these?5yr ⋅ EEbnGe ⋅ r/electronic_circuits
What kind of motor is this? All of this contraption is from a turntable from soviet times. Two of its wires connect ( I suppose ground) and other two connect elsewhere. When I measure the voltage it never goes higher that 1V but the circuit takes 16V4yr ⋅ Wummo ⋅ r/electronic_circuits
Need help adding global feedback. Need to drive a 150pF load at high voltage up to ~150V. Don’t want to lower output impedance so want to add another amplification stage and add global feedback to maintain a flat freq resp from 20-20khz... right now 3db down is at ~11.7khz....5yr ⋅ qu1en ⋅ r/electronic_circuits
Can someone help? The LED's are meant to light up when the microphone is spoken into but they only light up when I blow into the mic.5yr ⋅ keegz2011 ⋅ r/electronic_circuits
Any clue what L16 could be? I want to replace it but aren't sure what it's called.5yr ⋅ brin_tc ⋅ r/electronic_circuits
Can anyone give me advice? I pulled this chip and lifted all of the pads. Can I use jumpers to repair? If so, all of them seem obvious except the top two right pins.4yr ⋅ formerteenager ⋅ r/electronic_circuits
Help identifying this resistor? Can’t tell if it’s 4-band or 5-band, and whether the 3rd band is brown or orange. Any guesses?5yr ⋅ ladygagadisco ⋅ r/electronic_circuits
Couldn't resist to comment on this Circuit Digest project https://bit.ly/37cT9LZ but also make an open hardware design to counter it both in terms of cost/size/functionality and also better performance. You can find my design here https://bit.ly/2MIFtPl4yr ⋅ soubitos ⋅ r/electronic_circuits
Can someone help me figure out the power this transformer can give? It's from a Kenwood KR-5340 and all I could find was the receiver's schematic.4yr ⋅ wolfix1001 ⋅ r/electronic_circuits
12V battery charger fan circuit. Its smoking!! https://www.reddit.com/r/electronics/comments/b970w4/can_somebody_help_me_with_this_electronic_it/?utm_medium=android_app&utm_source=share5yr ⋅ Chappie477 ⋅ r/electronic_circuits
Can someone help me understand parallel resistors and stuff? I can't quite figure out the current flow of this schematic4yr ⋅ misterdanger31 ⋅ r/electronic_circuits
What's up with these two? They have what i would consider golden stripes in a place where, to my knowledge, they couldn't be4yr ⋅ ZSebra ⋅ r/electronic_circuits
