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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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Cheap display has weird frequency count

by m II
I bought an inexpensive volt/frequency led display from eBay. On a generator, I get the proper frequency display, around 60 Hz. When I tried it on a dc to ac inverter, square wave output, I get aro... read more »

Electronic Components

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Low voltage white LEDs.

by Ian Field
First bicycle headlamps and now an under shelf light. I'm starting to find white LEDs that run from 2x AAA cells - can't find any boost circuit at all. Anyone got a link to a data sheet that expl... read more »

Electronics Down Under

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Speaker Protection Question.

by ~misfit~
Hi. I've recently bought some second-hand speakers that are a lot more power-hungry than my previous speakers so am in the process of refurbishing and tuning a 'Playmster Pro Series Three Power A... read more »

Electronics Equipment

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Standing Waves

by 412dfitz
http://www.rbduncan.com/stdwave.htm read more »

General Electronics

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OT Renn-Katamarane (Re: AC)

by Wolfgang Allinger
forwarded and quote to weitergeleitet und zitiert on/am 26.05.17 RAJG@GMX.de (RA J. Geraedts.) in newsgroup: /de/rec/sport/segeln de.rec.sport.segeln topic : AC Hier gabs vor ... 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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Protel 98 freezing with ERC and Netlist creation

by jocelyn.fiset
I have a problem with my protel 98. Portel is freezing when i use the ERC ( electrical rule check ) and Creat Nest list function. Anyone could help me ? read more »

Electronics Design

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Protel 98 freezing with ERC and Netlist creation

by jocelyn.fiset
I have a problem with my protel 98. Portel is freezing when i use the ERC ( electrical rule check ) and Creat Nest list function. Anyone could help me ? read more »

Electronics Repair

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Autopsy on a failed 50W LED floodlight

by N_Cook
Chinese no-name YXY-FGD-50W White goo under the LED metal backing, only covering about 1/3 of the area, as originally placed blob , not fully splurged. Bowing of the metal at rear of the LED ar... read more »

Field-Programmable Gate Arrays

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VHDL or Verilog?

by Rick C. Hodgin
I've been given conflicting device on which language to use. There are people I would consider to be expert professionals who tell me to use VHDL, and others who tell me Verilog. Most everybody t... read more »

Microcontrollers

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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Is there a process for secure firmware install/upgrade for d...

by jhnlmn
Hi Recently more and more companies want to add security (authentication and/o r encryption) to their devices firmware install/update process. Typically t his is done by storing a secret encryptio... read more »

Embedded Linux

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Position : GE Devops role

by up2date technologies
Dear vendor partner., Position : GE Devops role Location: San Ramon Client: Harman / GE Client is particularly looking for the following skill set combination - AWS + Jenkins pipeline as code + ... read more »

Microcontroller Discussions

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Prototyping software?

by Kipper Klank
Is there any software out there that I can use to prototype circuit designs with a library of ICs and components. Like a graphical drag and drop type. Beacuse I'm thinking of making a z80 computer w... read more »

Raspberry Pi Group

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Connecting to a PICAXE

by Martin Gregorie
I've just started a new project to build an electronic timer for use in an electric freeflight model aircraft. My current plot is to use an RPi model B fitted with a 3.5 TFT display as the cont... 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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Gleichstrom mit wenig Verlust messen?

by
Spannungsabfall zu messen? eines Akkus zu messen, der mit Solarenergie geladen wird. Am Einfachsten ist ein Shunt-Widerstand. Problem: Bei zu grossem Widerstand hat man Verluste, bei zu kleinem w... read more »

Electronics (Spanish)

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Generar picos de tension

by
Hola gente, 24V con puente de diodos y condensador, por lo que tenmos los 33V de continua. logro reproducir el fallo.... Gracias. read more »

Electronics (French)

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Tasker C301 1x2x24 AWG professional noiseless microphone cab...

by
Bonjour, (longueur 5 m ) semi ou professionnel ? tresse et le conducteur en trop ? Alpibucky read more »

Electronics (Dutch)

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[CHARTER] handvest nl.hobby.elektronica [maandelijks bericht...

by
nl.hobby.elektronica - De elektronica als hobby. CHARTER: nl.hobby.elektronica nl.hobby.elektronica is een ongemodereerde nieuwsgroep voor de elektronicahobbyist. Discussies over de theoretische ... read more »

Electronics (Polish)

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Czy mogę użyć dowolnego języka (Verilog lub Vhdl ) z dow...

by
Witam ez (prawie) dowolny kompilator kompatybilny z danym systemem (np. Windows) ia tak jak kod C wymaga dostosowania do konkretnego system operacyjnego (r Szyk Cech read more »

Electronics (Swedish)

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Det ger ? 8000 till ? 4.000.000 vid en ränta p å 2% per å...

by
Du har avslagits av banken eftersom din kredit inte uppfyller deras standar read more »

Electronics (Danish)

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Tekst/tegning på frontpanel af aluminium?

by
Hej alle, Problemet - jeg kan jo ikke huske, hvad jeg gjorde den gang :-( men jeg har den film, jeg dengang anvendte og jeg vil gerne lave en Mvh Toke -- Toke.Norby@Norbyhus.dk http://norb... read more »

Microcontrollers (Russian)

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Rules

by
(fido7.)su.hardw.other read more »

Electronics Technologies (Russian)

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Тpавление печатных плат

by
2FeCl3 + Cu -> 2FeCl2 + CuCl_2 (1) CuCl2 + Fe -> FeCl2 + Cu (4) Cu + CuSO4 + 2NaCl -> 2CuCl + Na2SO4 (5) CuCl + NaCl -> Na[CuCl2] (6) 4CuCl + O2 + 4HCl -> 4CuCl2 +2H2O (9) 4CuCl + O2 + 2H2O -> 4... read more »

Electronic Circuits (Russian)

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вот потому протоны и не летают ны...

by
Hello All! http://pbs.twimg.com/media/DC7x6j2W0AABGQR.jpg Sasha http://dr-shost.com http://shostatsky.narod.ru [Team OS/2][Team EDSMO] read more »

Electronics Hobby (Italian)

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Precisione amplificatori operazionali

by
Buonasera, Ho montato un circuito per condizionare degli estensimetri, ho usato un AD8221 che fa la prima amplificazione seguito da un operazionale LM2904 che guadagna un altro 10 x , usando un ... read more »