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Welcome

Welcome to /electronics/, the board where we can discuss everything hardware.

Moderation will handle shitpost removal, corporate shilling and other attempts at ruining discussion- even though I believe in the power of self-moderation I understand that it has its limits.

This doesn’t mean that moderators will ban people if their opinions are different; we just really want to avoid repeated “look at how good this product is!” threads. It’s okay to state your opinion and start discussions, just remember to be civil.

You can use this thread to post suggestions to stickies and other constructive criticisms of the board. Some posts may be pruned from this thread as time goes on.

Update:

2015/06/04

The board is under new moderation. I have the same laissez-faire attitude. Just make sure to be excellent to each other dudes!

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Starting Out

This is the thread where students, hobbyists and experienced engineers can share literature, knowledge and advice to become better engineers, learn new skills and share ideas.

Sorry i hijacked your
"Is Horowitz and Hill's the Art of Electronics a good first text? Are there any other free resources?" thread anon, it just had some really good replies.
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FPGA thread

Everything FPGA's. Post your favorite FPGA, discuss HDL languages, dev boards, projects and everything else FPGA.
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Anti-Crawl Defense Barrier

I've seen this implemented on other boards and chans with a slow post rate and I thought it would be a good idea to do it here as well.

In this thread you are encouraged to post anything you want, pictures, webms, un/finished projects, questions, stories, opinions… it doesn't matters what, as long as it is remotely related to the board.

The objective is to increase the post rate to get users to come back regularly not only to check their posts, but also other users' posts, hopefully participating in other threads more often, creating a chain reaction and thus kickstarting the community, since the current post rate must be around 3-5 posts per week.

If you see this thread you must post in it.

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Now I can understand why these keep appearing in thin devices, in between stationary components.

What I can't understand is why I keep seeing these in laptop hinges and other moving parts without any sort of shielding. When these are unshielded, they'll rip if you look at them wrongly, so constantly pulling/pushing them seems like a horrible application. Is there something I'm missing here, or is this really just bad/cheap design? I don't think a thin layer of plastic would make the cable too thick to use in most places I've seen them.

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What do you study?

Is very funny that even this board looks like an electronics classroom, empty and maybe without womens.

I just wanna break the ice, asking what are you studying?
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imei,blacklisted

imei fix. Clearing imei on smartphones Android or apple products any software or links?

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i built this rf amplifier for 10 meters. although i know all radio waves are single phase i wonder what would happen if i turned the amplifier into a 3 phase amp, i.e added a third transistor and and a third leg on each ferrite transformer, and then drove it with a three phase oscillator at 28mhz. I guess i would need a tripole instead of a dipole antenna. I know when tesla invented 3 phase ac he conceived of the idea of the rotating magnetic field. if i made this thing would it be a circularly polarised transmitter or just a heap of shit that won't work cos all radio waves are single phase?
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Transforming an old tube radio into guitar amp

Hello /electronics/ i need some help and advice
I have an old late 50's tube radio at home
Its mine and i don't know any use of it, tried to sell it before but there was no interest.
The model is Telefunken Gavotte 9 Export

(specs. http://www.radiomuseum.org/r/telefunken_gavotte_9_export.html )

I got some money now and i saw some youtube videos of similar radios transformed into guitar amp, so i would like to do the same, but i don't have any knowledge needed to finish this project myself, i only know some college eletronics basics and have some basic soldering skills.
So my plan is to leave the radio circuits inside and use one button called Pick up button ( see pic ) to transform the radio into basic guitar amp.
It seems to me that i only have to find the circuits of that function and swap it with guitar jack and some basic elements to lead my guitar signal, but im not sure is this correct and how to do it

Btw sorry for my bad english not my native
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is there anyway to convert a USB webcam into wireless device?

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>tfw you get matlab ads on skype

I, for one, welcome our new ad bot overlords.

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noob

I am a total electronics noob and i need help

i need to know if it's safe to rewire the plug for my 3D printer's power supply. i got the printer a while back but it's never worked and i had no support from the creator of it (as they went bust) so i was unable to finish it

the printer: Phoenix by ez3d

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The logo at the boot process of a gamecube/ ps2 is coming from the BIOS, correct? If I want to eliminate the ability to play games and just want to work on developing my own bios to access the hardware like a normal computer, I just need to bypass the current BIOS chip with a modchip correct? Please help me understand this.

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probably a stupid question:

I know what voltage, amperage, and resistance is on paper and in theory. But what physically causes varying voltage or amperage levels? Like, what causes an increase in amps? if its more electrons, then where are the introduced from? and what increases the electric potential to increase voltage?

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https://www.youtube.com/watch?v=Mno-XDP2o2c

>2,000 Farads in a credit card

thoughts?

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How to make a coffee warmer hotter?

I just bought a Dazey Corporation Coffee Warmer cw-10 serial number 101789 for 3 dollars at a thrift store and was wondering if there was a way to make it get hot enough to heat small coals. On the back it says it puts out 25 Watts, 120 Volts and 60 Hz, is there something I can do to make it stronger?

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Project idea.

How about an open source phone/umpc/phablet?
I have had this project in mind for some time now.

My current idea is a system based around the freescale imx6quad, that fucker has everything and it is very open. 2d/3d graphics acceleration, sata, gigabit LAN, chip level encryption, tamper security, LVDS, MIPI DSI, CSI camera interface and much more. The gsm module power and mic connections can be controlled by the processor, allowing full control and fredom over your device. It would be the size of an UMPC while still allowing you full freedom and even stuff like sms and call encryption. If enough people are into the idea we could might even get it kickstartet. I hope the EE's of cyber are interested since this would grant us full control over our personal data.

The project github is at https://github.com/Anongineer/OSPhone

IRC channel is at #OSPhone on rizon
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Any other MOS-cultists here?
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Test equipment thread.

>post scopes

>post logic analyzers
>post DMM's
>post ESR meters

And everything else /testequipment/
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I have no idea what I'm doing

I need to wire a device to a 3-prong plug, but I have no experience whatsoever with this stuff. I found this diagram on my device, so now I know that it's a one phase circuit and the blue wire is the ground but that's all.

Which wire do I hook up to the neutral lead and which to the hot lead? I'm assuming that getting this wrong will fry the whole system

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So let's say I wanted to design an imageboard server on an FPGA.

No general-purpose computing or higher-order logic, it's not meant to be Turing-complete. I want the thing to natively speak chan at an electronic level.

It'd be broken down into a number of functional blocks and subunits, first of all.

One communications subunit for Ethernet PHY, MAC, TCP, and IP.

One data subunit for storage and retrieval of bulk data, and intrinsic microcode to handle that.

One control subunit, which contains registers/counters, and processes and fetches instructions from storage, starting at the microcode.

And one subunit containing necessary electronics like power-distribution, clocks, etc.

The core of the system would be a simple instruction fetch in the control subunit, which runs a small microcode from storage to prepare configuration and state.

Storage would be handled by an MMC or NAND driver, and said storage holds the higher-level code implementing the imageboard: a table of jmps correlating addresses to post IDs, and a post structure of simple "fetch [range]; jmp [template code subroutine]; fetch [range]" and so forth.

A couple registers will contain the current post ID, and the IP session of whoever's being served at that moment.

I fear the hardest part, would be keeping all the multiple internet sessions open, alive, and having data clocked out to them/in from them appropriately.

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Where do you guys go normally to get your parts for building?
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Good book, suggest it heartily