Any idea what this crud on the board could be? Controller was sealed pretty well.5mo ⋅ hobbes0022 ⋅ r/AskElectronics
What might I need to limit the signal so that this buzzer only rings for a half second?3yr ⋅ Squiggy_Pusterdump ⋅ r/AskElectronics
How can such a simple circuit, with just two cables going to the lights, make them turn on and off intermittently and play other light effects?1yr ⋅ GoTVm ⋅ r/AskElectronics
Has anybody ever seen a DIP16 package with these additional ‘pins’ on the side?2yr ⋅ carl0071 ⋅ r/AskElectronics
How do I connect this moron back to the circuit board? It just broke off with almost no force at all...2yr ⋅ Sploopiiiii ⋅ r/AskElectronics
Why does this PCB ruler from DigiKey have text saying that there's a buried via there? Like, I can't see it or use it as reference. So what am I supposed to use it for?3yr ⋅ yonatan8070 ⋅ r/AskElectronics
can someone tell me why nobody build class a amps like this and why I'm probably stupid?1yr ⋅ Razurio_Twitch ⋅ r/AskElectronics
Repairing a coffee machine that won't turn on, when i found this AC/DC converter. How could this happen?2yr ⋅ skeev_peev ⋅ r/AskElectronics
What type of resistor is this? Looks SMD but through hole style!3mo ⋅ TitanTronics ⋅ r/AskElectronics
Just baked my motherboard for my project and everything is connected and perfect...except this ONE resistor. Do I attempt to straighten it by hand and risk making it worse? Or should I just leave it be, like a crooked tooth?1yr ⋅ fleebjuice69420 ⋅ r/AskElectronics
Why does this calculator have a LED on it's backside that is supposed to be covered all the time?2yr ⋅ JLAJA ⋅ r/AskElectronics
How is this mounted to a pcb and is this also called SMD even though the pads are underneath?1yr ⋅ avgsuperhero ⋅ r/AskElectronics
what are these vacuum tube looking things in a 1960's rotary phone circuit?1yr ⋅ Y2Kdoomer ⋅ r/AskElectronics
Soldering advice? Anything I should do or avoid (besides not solder on the bed)?7mo ⋅ Ok-Affect2135 ⋅ r/AskElectronics
A correction to advice I was given. A couple of weeks back I asked on here what value a resistor had, and was told by many people it was 2.2ohms. The bands were red-red-black-silver-yellow. Today I received the replacement control board and measured the resistor, it's actually 22ohms (ish)1yr ⋅ raulloco ⋅ r/AskElectronics
Does anyone know what these pins are called? someone I used to know soldered them to jumper wires to use with a breadboard1yr ⋅ yaSuissa ⋅ r/AskElectronics
What is the purpose of adding the capacitors and resistors in parallel to these diodes?2yr ⋅ EgyptianGodRa ⋅ r/AskElectronics
Is it ok for me to keep using this PCB even if the solder mask is cracking?2yr ⋅ watlel ⋅ r/AskElectronics
I took a break last night from placing components to eat dinner, and then got too sleepy to start back up. Now my solder paste is hard and crusty and components don’t stick. Can I soften it? Will it still reflow fine?1yr ⋅ fleebjuice69420 ⋅ r/AskElectronics
Is this a 130 or a 100k resistor? How do I know which band is the first one?1yr ⋅ gucci_millennial ⋅ r/AskElectronics
Is this capacitor essential? Can i safely use the laptop while it is like this?1yr ⋅ Deathtruth ⋅ r/AskElectronics
Do all soldering iron shafts darken this much after 1-3 years of usage? and also what causes it to darken in the first place?1yr ⋅ fikajlo ⋅ r/AskElectronics
After consulting on this sub, I finally got it working! Thanks everyone.3yr ⋅ XDTZ ⋅ r/AskElectronics
Hey guys, can someone help me out? I came across this diagram and I'm not sure what type it is. Any ideas? Thanks in advance!1yr ⋅ CleverlyCovert ⋅ r/AskElectronics
Any companies out there deal with programming these? Had this PROM fail on one of the circuits and in order for us to get our machine up and running, the program needs to be read from this and written to a new one. We have the new chip but do not have the program file for it so needs to be pulled.3mo ⋅ PowerWagon106 ⋅ r/AskElectronics
Maybe a dumb question, but I'm working on an old telephone and I'm wondering what this black piece is, and if it would be the reason it's not working.2yr ⋅ Coasterabe ⋅ r/AskElectronics
How would someone make this camera/microphone found in vent of apartment?1yr ⋅ pro-frog ⋅ r/AskElectronics
What's this? I've found it between my grandpa stuffs after he passed away 😭. He loved to invent things.3yr ⋅ macusking ⋅ r/AskElectronics
How can I improve my soldering? The wires all pass the continuity test. These are Philips Hue strip lights V4. I tinned the wires prior and the strips were pre-tinned from the factory, I also used a good amount of flux but still think this came out ugly looking and worry about longevity.3yr ⋅ extremeelementz ⋅ r/AskElectronics
What is the purpose of this zigzag path? It is DC adapter.2yr ⋅ PredatorSalamiIsBack ⋅ r/AskElectronics
System is not saving bios settings, where is the battery on this board?1yr ⋅ ByRide ⋅ r/AskElectronics
Does anyone know the name of the cylindrical red LED (6th counting from left)?1yr ⋅ Cap_Diabetes ⋅ r/AskElectronics
I need to discharge the high voltage circuits in an old oscilloscope. What would be the fastest and easiest way to do it and not die? Anode appears to be epoxied on (it was military spec). I’m not an electronicist, so keep that in mind. ;)2yr ⋅ MantisAwakening ⋅ r/AskElectronics
why do they make this horrible almost-impossible-to-read blue resistors? what gives?2yr ⋅ macusking ⋅ r/AskElectronics
I reversed engineered a buck-boost converter module because i was unable to find the schematic of it. more in comments4yr ⋅ ra-hulk ⋅ r/AskElectronics
I'm trying to power a simple 5V fan from USB-C, Why wont it work?6mo ⋅ cbutters2000 ⋅ r/AskElectronics
I’m new to electronics can this capacitor really hold 450v1yr ⋅ Apprehensive_Law_687 ⋅ r/AskElectronics
My very first soldering on a practice kit, is there anything wrong that won't be fixed with some more practice?3mo ⋅ User2716057 ⋅ r/AskElectronics
What is the preferred method so these pins never make contact with one another? Should I just use liquid electrical tape?3yr ⋅ extremeelementz ⋅ r/AskElectronics
What is the purpose of this spring? it was included with my oscilloscope's probe. alligator clip for size comparison.1yr ⋅ Noor528 ⋅ r/AskElectronics
What are these containers called? Anyone have experience using these to organize components?1yr ⋅ markovich04 ⋅ r/AskElectronics
Accidentally popped off a SMD(not sure) on my RAM. Top one is damaged and lower one is normal. Is it safe to keep using it?1yr ⋅ needusernamehelpme ⋅ r/AskElectronics
Haven't used my oscilloscope in months, i turned it on and it's not perfectly flat anymore, a bit slanted... Is this an easy fix?2yr ⋅ benniepeaceandlove ⋅ r/AskElectronics
Can someone help identify this part and if it's burnt? I accidently shorted my work's SLA 3D printer and would like to keep my job by repairing it1yr ⋅ TheFifthCan ⋅ r/AskElectronics
totally thought I knew what it was when someone asked what kind of connector it was. turns out it's about 30% smaller than an rj45... 3/4L x 3/8 W x 1/4 H. didn't manage to find it through Googles so I'll ask here see if anyone else knows.1yr ⋅ Super_5oldier_1 ⋅ r/AskElectronics
Found this in an old arduino kit. Does someone know what the name of this component is?1yr ⋅ No_Entertainer4122 ⋅ r/AskElectronics
Do antique semiconductors, perhaps stored in a high-humidity area, pose a safety hazard?1yr ⋅ Conlan99 ⋅ r/AskElectronics
Does anyone know what these part containers are called and/or where I can find them?2yr ⋅ 5Beans6 ⋅ r/AskElectronics
so, is this seriously just a big ass weight in this machine? is there any other purpose why this thing could be here? my guess was that it just made it feel more expensive than the other models. was hoping someone had some insight on the thought behind something like this1yr ⋅ ___IfIHadATail___ ⋅ r/AskElectronics
I was wondering if this 120V AC to 5V DC regulator circuit would work?1yr ⋅ Brokenash ⋅ r/AskElectronics
How can I tell the value of C55 ? The device won’t power up and that chip gets burny hot instantly.1yr ⋅ Tim-Fu ⋅ r/AskElectronics
Hi, I really want to use one of these as a power switch, but I'm a little concerned about using these cheap switches for 230V as the housing is metal and therefore conductive. Is there a reason to be worried, or would you use it without worrying about it at all?1yr ⋅ emillllllllllllll ⋅ r/AskElectronics
your thoughts on this full bridge rectifier 50v output, 1100uf capacitors3mo ⋅ SoufianeMRC-parker ⋅ r/AskElectronics
Would this laser get brighter if i put 5v through it instead of 3v7mo ⋅ Limitfuckingless ⋅ r/AskElectronics
Finally hooked up my vintage oscilloscope to my turntable today! The lines bounce to the music and it looks amazing! I have a few questions in the comments for those interested.2yr ⋅ HanJaub ⋅ r/AskElectronics
My 8 year old, $12 Logitech mouse only registers about 1/4 of my clicks. I’m assuming the black Kaith click sensors (buttons) are degraded. Are these components that can be cleaned/repaired? Or are they end of life?1yr ⋅ fleebjuice69420 ⋅ r/AskElectronics
Is anyone able to identify what this component is? It makes a crackling sound, in an 80s Soviet tube clock. The clock started flickering when the crackling began, sounds like a Geiger counter.1yr ⋅ thismaybemeanscat ⋅ r/AskElectronics
Power supply mA current off by 38%. Is this acceptable for a budget power supply?1yr ⋅ DrTautology ⋅ r/AskElectronics
why does it say 16V 83f when individual caps are 500f? shouldn't it be 16V 500f?1yr ⋅ fikajlo ⋅ r/AskElectronics
My Boss ordered me a 10 output board for a keypad when I needed an 8 output board. Is there a work around where I could get it to work? Any adapters out there?2mo ⋅ Cootertrix ⋅ r/AskElectronics
What's this mysterious white pellet inside old germanium power transitors?2yr ⋅ malatechnika ⋅ r/AskElectronics
Small, low voltage (<3v) alternatives to flip dot indicators?3yr ⋅ ClermontTheBoat ⋅ r/AskElectronics
Get these at work all the time and dispose of them. Is there anything fun I can do with them?5mo ⋅ SLEDGEHAMMAA ⋅ r/AskElectronics
Question: would the LED filament keep working with no issues if I were to remove the glass enclosure?1yr ⋅ maramaol ⋅ r/AskElectronics
Is there any way I can get off all the solder from the ground pad around the PCB?1yr ⋅ vertigo1993 ⋅ r/AskElectronics
What is this chip? Came from a burglar alarm unit. No mention of it online.1yr ⋅ CucumberCowX99 ⋅ r/AskElectronics
I want to pass audio digitally over USB from my Switch to my PC. I've laid out my idea in this image below. Do you think it will work? Is there anything I should know when trying this? Is there a better/easier solution?2yr ⋅ Captain_Pumpkinhead ⋅ r/AskElectronics
Built this radio kit for my electronic class and it's not working, any ideas as to why.2yr ⋅ TR_KingCobrah ⋅ r/AskElectronics
Can someone help me to find out what the name of this component is ?2yr ⋅ DarkWarrior846 ⋅ r/AskElectronics
what is this plot/ analysis method called..? found it in the datasheet of a power amplifier2yr ⋅ kavsgme ⋅ r/AskElectronics
What is the purpose of the highlighted components in this amplifier circuit?2mo ⋅ DeltaCrush ⋅ r/AskElectronics
What is this tiny little silver tubular component called I have circled and what does it do?1yr ⋅ Narrow-Palpitation63 ⋅ r/AskElectronics
Looking for the part number/manufacturer of this dual USB&Micro-USB foldable connector3yr ⋅ sensors ⋅ r/AskElectronics
My PCB fab (JLCPCB) filled or covered all my vias and through-holes despite me specifying not to. Is there a way I can fix this, aside from reordering? The through-hole for the header is a 0.5mm drill, which is a size I don't have on hand.1yr ⋅ fleebjuice69420 ⋅ r/AskElectronics
Is using logic gates as a failsafe a good idea? I don't want these two relays to ever be on at the same time.1yr ⋅ fionasapphire ⋅ r/AskElectronics
I'm trying to build this breadboard wristwatch https://flux.ai/jharwinbarrozo/breadboard-wrist-watch and I stumbled upon a problem. Where I could find this HP mini bubble display?3yr ⋅ Product_Superb ⋅ r/AskElectronics
I got my self an oscilloscope and want to learn how to use it. The displayed line is flikery, how can I make it more stable?1yr ⋅ yerachden ⋅ r/AskElectronics
Does anybody know what component this is. I suspect it's a power regulator1yr ⋅ Smooth-Nectarine-586 ⋅ r/AskElectronics
Is this a resistor network? Don't mind my filthy hands. Cleaning stuff out at work right now.3yr ⋅ tehreal ⋅ r/AskElectronics
I don't understand why my circuit doesn't work. I'm a complete noob in circuits, I'm learning for diorama and model purposes. I'm trying to create this circuit but it doesn't work, what am I doing wrong?1yr ⋅ Akabranca ⋅ r/AskElectronics
