Electronics Design - Main Page

Do you have a question? Post it now! No Registration Necessary

Electronics Design - Design your own electronics! You are not alone.
Web, RSS and Social Media interface to sci.electronics.design
There are 550448 individual articles here that are part of 32072 discussions
Please see below the list of the most recent and the best rated articles in Electronics Design

The most recent discussions

Source for graphic display

October 30, 2014, 1:37 pm

Looking for LCD graphic display approximately 6 inches by 1.5 inches (150 mm by 30 mm). High-resolution not required; I'm apparently limited by my size requirements. I don't see anything more t... Read more »

Just for fun, Satellite watching

October 30, 2014, 11:57 am

Hi all, I occasionally visit the local marina in the evening and watch a satellite pass over, usually people there and I tell them what's going to happen, they seen to get a kick out of it. Tu... Read more »

OT chaos

October 29, 2014, 11:49 pm

Horns are blowing, people are screaming, illegal fireworks are being discharged. Something must have happened. -- John Larkin Highland Technology, Inc jlarkin att highlandtechnology dott... Read more »

Is eternal-september working?

October 29, 2014, 9:59 pm

I can't seem to access newsgroups through eternal-september. Their web site is working and reports that their servers are up. I get an NNTP error with Thunderbird. Is it eternal-september or maybe... Read more »

OT, plea for money, but worthwhile IMHO

October 29, 2014, 5:44 pm

If you want to be part of something high (as opposed to big): -- Tim Wescott Wescott Design Services http://www.wescottdesign.com Read more »

Surface-mount package cross reference

October 29, 2014, 2:00 pm

As near as I can tell, a TO-236-3, SC-59, SOT-23, and SOT-23-3 are all the same package. Ditto TO-243AA and SOT-89-3 Et cetera, for other package designators -- there seem to be so many standar... Read more »

Lorenz Field Coil Array - Opinions?

October 28, 2014, 10:27 pm

A friend of mine sent this picture of strangely series-connected coils that he is claiming unusual effects from. https://app.box.com/s/4qh2whx6xksonooch7zq The verrtical coils are wound on steel c... Read more »

Can the wave function of an electron be divided and trapped (article)

October 28, 2014, 9:58 pm

Hi, This article seems pretty intriguing, as an explanation for a phenomenon that occurs when electrons are shot into liquid helium. The electrons apparently break up into smaller size things and... Read more »

Question regarding switch simulation.

October 28, 2014, 4:33 pm

Hi. I have one handheld barcode scanner that is activated on button press. Now the problem is this button press because i need that the scanner is activated only when someone puts some barcode in... Read more »

Plasma transistor

October 28, 2014, 3:56 pm

Have you heard of plasma transistors?: University of Utah. (2014, March 20). Tiny transistors for extreme environs: Engineers shrink plasma devices to resist radiation. ScienceDaily: http://www.s... Read more »

Click here for other recent discussions »

The best rated discussions


Visio logic symbols

  [ 2 ]

Does anyone know of a location from which to download simple logic symbol shapes for Visio (and gate, or gate, etc)? Read more »


Protection circuit to be used for a gate pulse of SCR

Hello, I am doing a project on a temperature control system.My controller has been designed in LabVIEW and I get a control signal of 0-5V output from DAQ which needs to be given as gate pulse to SCR.... Read more »


Secure PIC programming

Hi We have customers using PICs who sometimes need to re-program them with updated firmware. It's inconvenient to have to ship the equipment back to a service centre, and most customers are quite... Read more »


Making piezo louder

David, Making an effective piezo drive circuit is about 10% of the work. The resonant cavity design and mounting technique of the piezo is the other 90%. You need to know how the piezo will vibrate... Read more »


is the hendershot generator ad a scam?

  [ 2 3 ]

is it a scam? Will it work in a residential home ? Read more »


C programming question for Arduino

  [ 2 ]

I'm wanting to make timers that work like PLC timers, a condition comes true, a preset period of time later code is executed. It would be something like: void mytimer(bool enable, long preset) void ... Read more »


STmicro acceleration/magnetic sensor LSM303DLH == LIS331DLH + HMC5834?

Just had a look at the LSM303DLH datasheet and had a déjà vu ;-) It looks like ST has simply put a LIS331DLH and a HMC5843 into one package. (The HMC lacks the built-in voltage regulator) All data ... Read more »


DSP Device for Guitar Pedal Effect

  [ 2 3 ]

I was wondering what DSP chip would be appropriate for a guitar pedal effect. I need to sample the incoming signal preferably at 96kHz perform a simple numeric function upon each sample and output h... Read more »


rechargeable batteries

Hello How can I charge a rechargeable battery in the lab, what's the 'reverse connection'? Read more »


Re: Strange control problem -- SOLVED!!! -- 3 phase "firing system&quo...

Glen, I solved the mystery. (about the firing system tripping on overcurrent with small currents, on a 200A welder) Here's what it was all about: The current sensor (connected to DC shunt) was NOT, ... Read more »