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 563527 individual articles here that are part of 32615 discussions
Please see below the list of the most recent and the best rated articles in Electronics Design

The most recent discussions

Input termination 50 to 1meg

March 1, 2015, 11:05 am

Hi, The input termination a spectrum analyzer is 50 ohms. Connecting the spectrum analyzer input to the DUT would load the circuit. Can a Fet probe be used to buffer the input of the spectrum a... Read more »

How I have fun with the ISS and other Satellites

March 1, 2015, 10:24 am

Many years ago I found this site, http://www.heavens-above.com/main.aspx And have used its info to go out in the early evening to view the International Space Station. Right now in my area all I... Read more »


February 28, 2015, 11:57 pm

Hi, What (and how!) can I deduce about the operation of a particular (e.g., previously empirically characterized) solenoid by observing it's electrical characteristics UNDER OPERATION? E.g., I c... Read more »

Drugs, politics etc

February 28, 2015, 7:14 pm

lled >herself. ual friends. Decided to fly out the window, upstairs of course. uite young. I somehow got ahold of some textbooks that were supposedly beyo nd my age. When I was a kid, I did not ... Read more »

digikey printed catalog

February 28, 2015, 5:09 pm

Hi. Old school guy here. As you know, Digikey nixed the paper catalog years ago. It was huge. But I miss it. It was a great desk reference and I always learned things but just browsing dead time... Read more »

OT: Happy birthday, JT

February 28, 2015, 11:30 am

Anything special planned for today? Read more »

Re: Drum Core Stray Magnetic Field

February 28, 2015, 10:17 am

On Sat, 28 Feb 2015 05:19:36 -0700, Lasse Langwadt Christensen Or, a Network Analyzer and note the S21 term. There is a widget called an H-Field PRobe used to be made by HP. Calibrated thingy,... Read more »

Ideal vs. lossy transmission line model question

February 27, 2015, 10:54 pm

Could some electronics guru please clarify a few subtle questions regarding lumped parameter model of transmission lines ? The simple loss-less lumped parameter model consists of an ideal capaci... Read more »

Sample-and-Hold Differentiator

  [ 2 ]
February 27, 2015, 5:24 pm

I need to differentiate a really slow signal (DC to ~2kHz) I'm toying with the idea that two sample-and-hold's and a steerable diff-stage should do the trick. Anyone done that before? ... Read more »

BLEduino - Gone for Good?

February 27, 2015, 3:42 pm

http://forum.bleduino.cc/ I can't find any responses to questions asked in the forum. There seems to be no way to buy these. The only sign of life is that there are posts that people got the b... Read more »

Click here for other recent discussions »

The best rated discussions


rechargeable batteries

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


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 »


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 »


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 »


is the hendershot generator ad a scam?

  [ 2 3 4 ]

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


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 »


micropower boost circuit

  [ 2 ]

I need a DC to DC boost circuit with an output defined not with respect to ground, but with respect to the input, which is variable. Output about 15 volts above the input, over a wide range -- f... Read more »


Re: floppy drive emulator hardware usb or sdcard

On Apr 16, 11:53 am, alfons de wolf en e NoLife ;-) One possibility is a virtual drive. One, create a virtual drive in memory. Two, make an image of your floppy disc contents on a flash drive... Read more »