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Search - "resistors"
Radio Shack store closed near my house. Had a huge fire sale. Electric circuit components were 90% off.
My wife thought I'd gone insane when I got home with two huge bags full of LEDs, resistors, switches, IR sensors, photocells, capacitors, bridge rectifiers, a spare breadboard, a pair of helping hands, etc.
My only regret is that I didn't catch the fire sale in time to grab all their Arduinos.3
My company decided to hire a new director at the electronics shop. There are certain hours when we have a lot of clients. So the guy had to man a cash register.
Client: I need 2 kilo resistors
The client obviously needed resistors of two kiloohms.
The director rushed out to the warehouse and came back with 2 kilograms of resistors to the gram
How can someone be so retarded! ¿4
Recently I got into contact with the supplier of that 500W power supply that I've been servicing earlier, as I lost my pictures of the disassembly process with that craptacular Nexus 6P (didn't back them up.. terrible sysadmin, am I not?) and wanted to get the circuit diagrams of this thing in order to repair it. Sales girl wanted to give it to me but she'd have to ask the factory people.. and of course those people denied. As if I wanted to use this for anything but to repair my own bloody unit.. pieces of shit.
So I started considering buying a second one, in order to repair my current supply that I've already spent half a week on to document its components, desolder it, clean it up and resolder it (and replace some resistors here and there with better ones from my own assortment). And the project had to be paused because I lost the stupid pictures and couldn't for the love of God figure out how there's supposed to be a jumper near BD2.
Just now going through my notifs..
"Someone ++'d your rant!"
A rant that I completely forgot about.. https://devrant.com/rants/1757297. It's a perfect picture of the supposed jumper near BD2 that I was scratching my head about for so long. Turns out that it's just a dupe of the LF2 lines that I erroneously wrote down twice. DevRant, it's good for more than just venting, haha! Time to restore from a cloud backup XD4
I just spent entire day soldering stuff onto the PCB for the phone im making (yes a phone you read that right) (Yes im absolutely crazy).
Not because i would suck at soldering but because the project i based the board on (prototype only and future version will be fully from scratch) has PDFs of where the each component goes. BOM and that PDF do not match at all. Yet the names i guess in KiCad match up with BOM. So i used those as reference. Only finished half of it cause i had to redo the entire soldering cause it didnt match up at first. Also turns out im missing some freaking resistors which aint good.18
When you order a bezillion tiny things at small prices to avoid toll on one large package, and you have no fucking clue if everything has arrived.
Arduino stuffs, LEDs, resistors, stuffs like that wherever its cheap for those wondering.3
I have a 16 year old son who is off-and-on showing interest in learning electronics. He wants to work for NASA someday. I’ve looked at dozens of Arduino and Raspberry Pi kits but I feel like he would benefit not so much from “mostly done for him” types of kits that are more like toys, but the kind that teach more fundamentals like resistors, capacitors, transistors, relays, etc. In other words, knowing first what the principles are behind the fancier kits. Do any of you have a recommendation of kits that start with the fundamentals, but that can still be inspiring and engaging?13
PostMarketOS port rant 2:
Ouuuuu fuck this will be fun.
Got the device to show a logo. Doesnt boot up but who fucking cares. I got logo LUL.
And on top of that. I implemented the ELF support in the PMOS code so i dont have to make my own image like crazy.
Its on review still and have to fix few things tomorrow on it but it works which is most important.
Next time i will post another one of these i will have UART adapter here (Not arduino that i cant use because i dont have the resistors needed to make 5V to 3.3V. FFFFFFFFFFFFFFF)
Then we can debug the shit to hell.2
Any recommendations for introductory books on electrical engineering? I'm looking for something that goes into detail on the basics: tension, current, resistance, inductance, capacitance, etc. I have very little knowledge on the subject (I know what the basic components do and that's it) and I found myself struggling a bit with the most basic concept: voltage.
I grabbed my multimeter, a few resistors and a battery and played around a bit. For some reason it doesn't really "click" why on a 5v circuit with 3 2.2k ohm resistors (I think) the voltage around each resistor was like ~1.3 volts or something, while on a circuit with 2 resistors the voltage accross each one was ~2.3 something volts (I don't remember exact values). Like, I know that voltage is a difference in potential, but I still don't get it and idk what I'm missing. Why is the difference in potential accross a resistor different if the circuit has 2 resistors in series instead of 3. It kinda makes sense in my head but at the same time it doesn't.
In short, I want to know the "why" stuff works the way it does, not just the "how".
Also, if the book covers common practices, components, and circuits that'd be very helpful. I want to learn how to build well-designed, reliable and safe circuits.12
Just finished my first tutorial ever!!!
"Cheap poly pocket/plastic sleeve hack for storing small electronics/stuff... "
I wanted to make tutorials for a long time, but due to a burnout, I've been unable to finish any project.
Yesterday I was trying to find a solution to place all my resistors in one place, and I found it... Then I tought.. I never saw this hack on the internet... It's simple, easily explaining, this could be my first Tutorial.
So here it goes:
1st - It's an Alpha product, just finished with the grammar
2rd - Pictures may be changed later when I get my workbench and good light
3rd - No styles yet, so don't complain about the lack of CSS, but it's already readable.
When I get a few more made, enough to desert a page on itself I'll CSS everything (So I can create a common theme) and release it to the public... maybe I'll get a few bucks with a few Ads
This alpha release is only for DevRant use. I would appreciate comments, improvements, ideias and tips
Thanks to @forE , @oudalally , @ewpratten , @Stuxnet , @j4cobgarby , @BashouT , @Plastic pocket and other in: https://devrant.com/rants/1539595/...8