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There are 743990 individual articles here that are part of 40243 discussions
Please see below the list of the most recent and the best rated articles in Electronics Design

The most recent discussions

Energy savings, do you care?

August 4, 2020, 7:38 am

Hi Triggered by the HVAC wiring thread, just out of curiosity: Some of you probably have a circulation pump in the house, or several depending on the system. Do you care about the efficiency of t... Read more »

How get windows FIND() to work?

August 4, 2020, 2:13 am

Environment: Win7.1 Firefox 78 Sample line used: Downhole Measurements At least execution transfers from the calling HTML to the desired destination HTML. BUT. the keyword does N... Read more »

OT. Donate blood, Covid survivors

August 3, 2020, 10:36 pm

From the U.S. Food and Drug Administration. It's called convalescent plasma. A German won a Nobel Prize for this back in 1901. It helped against diphtheria and also later against the S... Read more »

HVAC control wiring

August 3, 2020, 4:20 pm

In the US, HVAC systems are controlled via low-voltage wiring (to the thermostat). In most homes that I've seen, this is just bell wire run through the wall interior exiting through an /ad hoc/ ho... Read more »

Equivalent circuit of an Arduino ATM328 digital input pin?

August 3, 2020, 11:09 am

My first Arduino project (using an ATMega 328) is triggered by a roughly 5V to 0V edge and works fine overall. (It sends a series of servo arm movements.) But I'm still playing with various simple fr... Read more »

UV sensor

August 3, 2020, 7:36 am

I'd like to be able to determine the intensity of UV radiation from different sources like CCFLs, the sun under various conditions, UV torchlight, etc. The sensor doesn't have to be very linear... Read more »

Help on programming

August 2, 2020, 5:43 am

See http://www.oil4lessllc.org/HELP/ This folder has an almost-working HELP.htm that i would like to have fixed. The folder also has working files gPAD.htm and gUS.htm. The file sub... Read more »

This is funny

August 2, 2020, 2:24 am

I received a notice today that Spectrum is going to disconnect my service for non payment. I had told them that I wasn't going to pay for the time that I had no service. How can they disconnect you w... Read more »

Re: Induction heaters

August 1, 2020, 10:56 pm

On Sat, 1 Aug 2020 20:27:03 +0000 (UTC), David Lesher About 30 KHz. Varies, but hundreds of watts. See . He publishes his circuits. He was a founder of Fluxeon: . Joe Gwinn Read more »

Puzzling Pentode Problem, 1951 radio

  [ 2 ]
August 1, 2020, 4:23 am

A Pye P43U 4 tube radio: it works, but all is not well with the output pentode section and I'm not fully clear why. https://archives.doctsf.com/documents/feuilleter_document.php?num_doc=13349&ref=14... Read more »

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The best rated discussions


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 ar... Read more »


LT Spice schmitt oscillator

  [ 2 ]

Does anybody have a working LT Spice netlist for a simple schmitt inverter/R-C oscillator? I tried one using the library schmitt inverter and get obscure sim errors, and I don't understand the HELP ... Read more »


propagation velocity experiment

This would involve CK722 transistors, slotline samplers, and pecan pralines [1]. Unit of measure would be kiloseconds. Let's see what happens. John [1] The crunchy kind, of course. Only Yankee touris... Read more »


How to isolate 5V and 12V circuit

Hello everyone, I have extend existing circuit design by adding a 12V relay to it. AT the moment both 5V and 12V circuit are side by side. This doesn't work well. Intermitent device failure happen. I... 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 »


Tek TDS 744A -> TDS 784A upgrade hack!

Hi, all, Just wanted to report success in upgrading my TDS 744A scope (500 MHz, 2 gigasamples) to a much swoopier TDS 784A (1 GHz, 4 gigasamples). It now identifies itself as a TDS 784A everywh... Read more »


EPE TENS circuit.

Would anyone have a circuit for the EPE TENS machine ?. Cheers .... jk 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 »


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 »