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There are 670196 individual articles here that are part of 37493 discussions
Please see below the list of the most recent and the best rated articles in Electronics Design

The most recent discussions

Floating simulated inductor idea

April 25, 2018, 11:28 pm

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Tant trauma (again)

April 25, 2018, 8:05 pm

So a circuit that had been tested. And now failed. The tant. (35V 10 uF Kemet) was in the right way (and a now a dead short). 15V power supply. It's the back half of an LC low pass.. 100uH. ... Read more »

Mini HDMI 1080P AV HD TV Video Cable Cord

April 25, 2018, 6:17 pm

I have an Android tablet. It has a special connector for a HDMI connector cord. Ebay has the cords for these, and they will connect to the tablet, but what does the other end connect to on a HDTV? ... Read more »

zener question

April 25, 2018, 3:45 pm

I have an early version of a ham radio mobile supply that can't take more than 14.5 volts. Later versions used different transistors good to 16v that sell for big $. Could I wire in a 14.somet... Read more »

OT: Fridge repair, side-by-side, how long does freezer last?

April 24, 2018, 9:35 pm

The thermostat in our Kenmore side-by-side fridge is croaking. New one is on the way. I estimate the repair will take me an hour, considering the removal of some panels and stuff. The fridge doo... Read more »

Atmel 328 ext. interupts

April 23, 2018, 8:31 pm

sci.electronics.design Atmel 328 external interupts I'm debugging an Atmel AVR 328 that won't generate an external #0 interupt. At present, the timer1 is generating an overflow interupt as would... Read more »

Timing relay providers

April 23, 2018, 8:25 pm

I seek a timing relay with some/all of the following: a) LV operation, 12-24VDC or AC b) Input triggers a one-shot output c) Intervals in hours, 1-14 or so. d) Reset that will terminate the one-s... Read more »

Announcement: Spice Models for TC4421/TC4422 posted on my website...

April 23, 2018, 8:24 pm

Announcement: Spice Models for TC4421/TC4422 posted on my website... See TC4421-TC4422.zip on the Device Models & Subcircuits Page of my website. This behavioral modeling post is for announcement... Read more »

Re: failed LED Teardown

April 23, 2018, 8:11 pm

One fixture in my kitchen fluorescent retrofit has been running over 2 years, all 3 fixtures have been going over a year for sure. Other than some crummy soldering issues (these SMT high-power L... Read more »

Aluminum-core PCB cost?

  [ 2 ]
April 23, 2018, 8:31 am

I have a customer who wants me to do an extreme shrink of our semi-custom diode laser controller board, which leads to a lot of thermal issues. The obvious approach is an aluminum-core circuit ... Read more »

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The best rated discussions


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 »


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 »


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 »


is the hendershot generator ad a scam?

  [ 2 3 4 ]

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 »


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 »


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 »


EPE TENS circuit.

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