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 549296 individual articles here that are part of 32017 discussions
Please see below the list of the most recent and the best rated articles in Electronics Design

The most recent discussions

OT: vaccine and natural immune response differences

October 21, 2014, 2:46 am

Hi, Here's an article on a paper that shows that natural immunity is superior to vaccine induced immunity, since the natural immune response is proven to strengthen the innate immune system: http... Read more »

frequency counter with offset for 10 Euro

October 19, 2014, 1:42 pm

Here testing with the Rubidium reference: http://panteltje.com/pub/frequency_counter_rubidium_test_IMG_4606.JPG Here the circuit diagram that nobody can read: http://panteltje.com/pub/frequency_... Read more »

Stott on Romans 8

October 18, 2014, 10:22 pm

http://tinyurl.com/onttmvs Love P -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 ... Read more »

Help regarding schematics

October 18, 2014, 2:45 pm

Hi to all. Ok, i got a bit strange situation. I have one analog gas probe that has range from 0 - 180 Ohm ( 0- 2V ). The device that reads the values of this probe awaits values from 0 - 24V so ... Read more »

OPC driver/Software question

October 18, 2014, 1:57 pm

I have a device that I made and it has RS485 on it, I DDE server for the windows HMI front end, which seems to the market.. There has been chatter that NetDDE is not supported any more and may... Read more »

History of the "quantum of action" (1900-1927) / by Socratus /

October 18, 2014, 1:45 am

History of the quantum of action (1900-1927) / by Socratus / a) In 1900 Planck united together two formulas ( Rayleigh-Jeansfor for long and Wien's for short wavelengths) and then divided them.... Read more »

Which oscillator?

  [ 2 ]
October 17, 2014, 7:10 pm

Hi folks. I'm looking to choose a couple of oscillators for 3rd world construction/use, and I'm very rusty on the properties of the numerous options. What's essential: - reasonably frequency stable ... Read more »

low crosstalk analog mux

October 17, 2014, 7:01 pm

On a multiple-output waveform generator box, I want to have a test connector that can be programmed to snoop one of eight analog signals. The frequency range is up to about 1 MHz, and I'd like to k... Read more »


October 17, 2014, 2:08 pm

CFSI Conflict Free smelter lists published 16 October are now loaded into BOMcheck Read more »

Creepage and clearance requirements in vacuum

October 17, 2014, 5:05 am

Where could I find requirements for creepage and clearance distances for electronics in a vacuum (1e-5 mbar) environment? The EN-IEC 61010-1 specifies these distances for use in air and also list... 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 »