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Basic Electronics

These groups are the best place to ask your basic electronics beginner questions or help other people just starting out with electronics

Hobby Electronics Basics

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Charging my 12v Battery?

by W. eWatson
I have a Kirkland (CostCo) deep cycle battery that I have not used in three years. It's waiting for another project to complete. I charge it about once a year. The other night I thought I might ... read more »

Electronic Components

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How to integrate a voltage meter in a circuit?

by Jason Pirok
What am I doing wrong that the 15v voltage meter that I'm installing on my power supply would peg out with 1.2v on the output? I have a Jameco 20626 (JE215) Adjustable Dual Power Supply Kit that I... read more »

Electronics Down Under

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OT: thoughts on this 'powerpot'

by Jeßus
Came across this by chance today: http://www.thepowerpot.com/ I'm very interested in this, as I run a wood heather and/or stove most of the year. This is the first I've heard of it, if this was sca... read more »

Electronics Equipment

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Rubber dome switches

by petrus bitbyter
So I have to repair a Yamaha instrument that has its push switches worn out. The rubber dome switches are known as VE135700. Dimensions 10x10x4mm. About half of the 4mm height is the dome. I'm de... read more »

General Electronics

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Re: Rubber dome switches

by mroberds
Xpost list trimmed. Followups set to sci.electronics.repair . Googling VE135700 switch leads to the following thread or http://is.gd/wnGlDB which suggests that at least in 2004, that part was ... read more »

Advanced Electronics

These forums contain more advanced topics which are most suitable for people with some experience in electronics. Start a dicussion here if your topic is not basic and does not fit into another, more specific category

Electronics Computer-Aided Design

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Stepping multiple parameters in a simulation

by Jim Thompson
A question presented on the LTspice list by John Woodgate prompted my answer, which may be of interest to other LTspice/PSpice/whatever users: Here's an extreme example of multi-parameter stepping... read more »

Electronics Design

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Highish Current/Lowish Voltage Rectification

by Cursitor Doom
Hi all, I have a welding transformer that produces an output of either 50V AC or 80V AC (open circuit voltage) at a range of currents of up to 200 Amps. I want to convert this to DC, preferably b... read more »

Electronics Repair

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Repaired Maytag Bravos Washer with d5 code.

by amdx
I found my washer had stopped with a d5 code showing. A search found this was a suds code. It was not really a suds code. I moved the washer and could tell it still had a lot of water in it. I co... read more »

Field-Programmable Gate Arrays

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JTAG issues Cyclone V SoC

by Al Clark
I am designing my own Altera Cyclone V SoM board. It is not intended to be a dev board. It will be a function module that also includes Analog Devices' SHARC DSPs. I am working on the JTAG conn... read more »


These forums contain discussions about microcontrollers, their application and programming with topics ranging from LED blinking to embedded operating systems.

Embedded Programming

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Bluetooth inquiry / response

by John Speth
Hi Folks- I have a Bluetooth inquiry/response connection problem for which I suspect there is a classic solution. I just can't seem to find the answer so I hope somebody here can offer a soluti... read more »

Embedded Linux

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Ubuntu One shutting down soon. What happens to all the terab...

by 7
Ubuntu One shutting down soon. What happens to all the terabytes of .bin image files? ----------------------------------------------------------------------- There are terabytes of .bin image fil... read more »

Microcontroller Discussions

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Microchip Forums upgrade borked

by Ian Malcolm
Well its been about 24 hours now and the upgraded forum is still unusable http://www.microchip.com/forums/ Without a usable forum, Microchip are just another manufacturere with a crappy website .... read more »

Raspberry Pi Group

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Amixer strangeness

by Dave Saville
I have two pi's Both Raspbian. If I run amixer on each I get a different result. pi@raspberrypi ~ $ amixer Simple mixer control 'PCM',0 Capabilities: pvolume pvolume-joined pswitch pswitch-jo... read more »

International Electronics (BETA)

We provide access to electronics newsgroups in languages other than English. Due to heavy use of technical and scientific terms, these discussions are relatively easy to translate to the language of your choice. Please only post using the particular language of the forum. Please note: support of groups in languages other than English is still in BETA. Some features, such as post and reply for example, are not currently working in the international forums

Electronics (German)

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hier ist DSE1 und ruft CQ CQ CQ DX d.s.e. Ist hier jemand QRV und kann mich aufnehmen? piep ( read more »

Electronics (Spanish)

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donde puedo comprar un acumulador como este ni-mh 3.6v 40mah...

alguien sabe donde puedo comprar un acumulador como este: ni-mh 3.6v 40mah 14h 4ma http://i01.i.aliimg.com/img/pb/665/180/231/1259913661057_hz_myalibaba_web17_4212.jpg y a buen precio. busco por... read more »

Electronics (Croatian)

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Kvar na hladnjaku?

Kad radi na max tj #7, ohladi na 4-5'C, ali stalno radi bez prestanka. Kad stavim na #6 do #6.5, prestane raditi, ne pali se satima i temperatura u hladnjaku se popne na cak 15'C!!! U cemu je pro... read more »

Electronics (Dutch)

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Zender - ontvanger voor koptelefoon

Ik zoek al een tijdje naar een oplossing voor het volgende. Ik heb een Bose koptelefoon aangeschaft (QC15) met een acoustic noise cance lling. Het omgevingsgeluid wordt met tegengeluid sterk geredu... read more »

Electronics (Swedish)

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En fundering över 'Donald Cook' och högteknologi

internationellt vatten i Svarta havet. Det har kommit uppgifter om att riskera livet. http://sdelanounas.ru/index.php?module=Blogs&action=View&id=48815 read more »

Electronics (Danish)

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Ændre værdi på potmeter

Det fungerer bare ikke. Hvad er det jeg ikke ved om potmetre? Karl Erik. read more »

Microcontrollers (Russian)

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(fido7.)su.hardw.other http://crutch.fatal.ru/?s=ru_embedded read more »

Electronics Technologies (Russian)

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Re: Автомобильный pазъем

AV> http://pics.rsh.ru/img/PICT0996_bfnhtgva.jpg AV> http://pics.rsh.ru/img/PICT1002_71qqd7to.jpg read more »

Electronic Circuits (Russian)

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с вегалаб, про лут

Hello All! - - Sasha http://dr-shost.com http://shostatsky.narod.ru [Team OS/2][Team EDSMO] read more »

Electronics Hobby (Italian)

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Devo estrarre da un certo filtro un segnalino differenziale di una ventina di millivolt e trasformarlo in un segnalone di 10 volt picco-picco, problema che comunque avrei risolto con questo circuit... read more »