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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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Why are engineering sample CPUs illegal to sell?

by Commander Kinsey
Why are engineering sample CPUs illegal to sell? read more »

Electronic Components

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Help identifying connector

by Mike Mocha
Hey all, I need some help to identify the manufacturer of the DIAG connector shown in the imgur link. I've done a lot of searching on Digikey, Mouser, etc, and I'm not having any luck. The pin... read more »

Electronics Down Under

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Ed McGaw

by Trevor Wilson
This is a long shot, but I've been asked by an American friend if I can locate a guy called Ed McGaw. He worked for Scientific Atlanta and/or Quan-Tech in New Jersey some years ago. He resides in... read more »

Electronics Equipment

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PM3384 Failed Calibration Need some info

by Frank Heizler
I have a pm3384 and it keeps failing the autocal. I went through the manual calibration, and it was in need of that, but in the end it still failed wi th error d1a. I've read the service manual an... read more »

General Electronics

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Rubber beading on high voltage cable insulation

by Mike Mocha
Hey all, Just curious what you think about this. The photos at the link are showing large gauge wire used on a vintage 600 VDC rail vehicle. We're talking 1930's electric streetcar technology.... 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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Looking for a NGSpice model or subcircuit for TC4422 MOSFET ...

by Jeff
I Use NG-Spicec and am looking for a model or subcircuit for the TC4422 MOSFET driver. Would very much appreciate if you could point me to it. I did see a model but it was a wierd format, not a sta... read more »

Electronics Design

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Auction in Fremont, ca NOW

by Bill Martin
No connection to this, just posting for NorCal bargain hunters. Be quick, lots start closing in 2 hours, around 11AM PST. enjoy, Bill https://bid.xtechauctions.com/auctions/4-1TPJI5/complete-fac... read more »

Electronics Repair

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I am trying to locate a power transformer

by lanavy2307
#94-620-01 for a Crate Amplifier. read more »

Field-Programmable Gate Arrays

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Magellan VHDL monitor for Basys 3 board

by Claudio Avi Chami
Magellan HW monitor for Basys 3 board - Access register banks for reading/writing via JTAG to AXI adapter. Can also monitor register values via the board seven-segment display (register address is se... 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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Override libc functions

by pozz
Many times I'd like to replace libc functions in embedded systems, because of some tests or because I need a different implementation. For example, sprintf implementation of newlib uses malloc and... read more »

Embedded Linux

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Addressing on I2C

by ZOT
Are they some 'reserved' 'well known' addresses on i2c? -- read more »

Microcontroller Discussions

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New(ish) assembler for PIC16 microcontrollers (asm1825)

by Andrew T.
I thought I'd put a post out here for anyone working with PIC16 microcontrollers who might be interested in this assembler I've been working on. I started developing this around 2017 because I fou... read more »

Raspberry Pi Group

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JTAG?

by gareth evans
I wonder if any here have dabbled with the JTAG connections of the RPi, for it seems to me that as a low-level interested party it could be interesting to control a RPi4 through the JTAG interface... 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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Bitte um Erinnerungshilfe bzgl. DCF-diszipliniertem Quarzosz...

by
Hallo, ich bin auf der Suche nach der Schaltung eines DCF-disziplnierten hier echtes TTL-Grab. Klingelt es da bei jemandem von Euch? Reinhard read more »

Electronics (Spanish)

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Tengo un aerogenerador de 1000 watts (48VDC/20Amperes).

by
Tengo un aerogenerador de 1000 watts (48VDC/20Amperes). El es trifasico en triangulo, quisiera saber que corriente entrega por fase. Agradezco mucho la ayuda. Mauro. read more »

Electronics (French)

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les semi-conducteurs !

by
slt, la con_somation est passe de 10 a 20 milliard en europe ! vos pretentions salariale, ont un Grouwnt, plus important, en revanche faire un interupteur avec un Mofset, si c'est qualitatif ..., ... read more »

Electronics (Croatian)

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Vjetroelektrana + Solarni panel

by
Imam vjetroelektranu na 24V i Solarni panel na 12V. Kupio bi 2 akumulatora po 12V ( 100Ah + 40Ah) i spojio u seriju da dobijem 24V. ulator od 100Ah bi spojio solarni panel 12V. Na akumulatore bi... 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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lwIP - odbieranie danych przez TCP

by
przeportowanie samej aplikacji odpowiedzialnej za odtwarzanie streamu z proste. Socket sieciowy dysponuje buforem FIFO o zdefiniowanej - void* paylod - int len - int tot_len - struct pbuf* nex... read more »

Electronics (Danish)

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LG TV billedet forsvinder

by
Hej LG TV 55UH950V billedet forsvinder efter et par sekunder. Hvad skal jeg kort tid. mvh read more »

Microcontrollers (Russian)

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По моему это гениально ...

by
.............. wait10ms: rcall wait5ms ;5ms 7+x return addresses ;proceed with wait5ms ;+5ms wait5ms: rcall wait1ms ;1ms 6+x return addresses ;proceed with wait4ms ... read more »

PCAD Forum (Russian)

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Где Оркад хранит дефолтные соотв...

by
Hello All! AZ> Давно хотел узнать, но было не особенно актуально, а вот сегодня, что AZ> называется, нарвался. Добавил в схему диод, в схематике у него выводы AZ> обозначены 1 и 2, а когда Лэйаут ... read more »

Electronics Hobby (Italian)

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[LIDL] batterie litio da trapano a e-bike

by
Alla LIDL, causa prezzo conveniente, tempo fa avevo preso un paio di pacchi batterie da 18V (X20V Team). Acquisto fatto in via preventiva, non avendo nessun utensile. Recentemente ho rovinato una ... read more »