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 707960 individual articles here that are part of 38834 discussions
Please see below the list of the most recent and the best rated articles in Electronics Design

The most recent discussions

bandwidth explosion

July 18, 2019, 5:44 am

At work, we signed up with MonkeyBrains for microwave internet service. We ordered the 50+50 mbit plan. It's actually speed testing about 350+350. And at home, a guy from Comcast (our local cable ... Read more »

Re: OT: Bank Failure

July 17, 2019, 1:55 pm

I see you've become a Zero-Hedge reader, Jan. :) Well it does seem very odd that Germany only got a fraction of their gold back that was being stored in supposed safe custody in the US. Not quite ... Read more »

Plastic screws

  [ 2 ]
July 17, 2019, 1:25 pm

For that SEM cathodoluminescence gizmo I mentioned in the distributed attenuator thread, I need to cool a multi-pixel photon counter (MPPC) down to about -10C. It's on the end of a piece of alum... Read more »

Wireless door chime stopped working

July 16, 2019, 5:47 am

I have a wireless doorbell made by Radio Shack. :-( Something is wrong with the sender unit. When the button is pressed, the led lights up but the chimes do not ring. The chime unit does work, I b... Read more »

whiteboard advances

July 15, 2019, 8:04 pm

Our internet was down this morning so I did what I've been wanting to do for a long time, namely install a fixed cam to shoot pics of my whiteboard. https://www.dropbox.com/s/un6yfeugb1t9chg/WB.JP... Read more »

TO-220 'lock' washer

July 15, 2019, 7:44 pm

So we had a few transistors in to-220 pacs de-laminate at the metal tab/ plastic interface. (lost electrical connection to the collector.) https://www.dropbox.com/s/keg8fwdipubev2z/TO-220.JPG?dl=... Read more »

offshore manufacturing

  [ 2 ]
July 15, 2019, 2:50 pm

https://abcnews.go.com/Business/wireStory/businesses-find-problems-pitfalls-making-goods-overseas-64249673 -- John Larkin Highland Technology, Inc lunatic fringe electronics Read more »

Assistance in designing measurement circuit for Tolman-Stewart experiment: ...

July 15, 2019, 1:12 am

Hello all! About a month ago I posted to this forum looking for help in designing a ci rcuit to measure a small current pulse. (Thread is here: https://groups.g oogle.com/forum/#!topic/sci.elect... Read more »

charge-based piezo drive

  [ 2 3 ]
July 14, 2019, 5:37 pm

I'm finishing a section on charge-based piezo drive. Anybody want to say anything about it? -- Thanks, - Win Read more »

OT: Moon Landing

  [ 2 3 4 5 ]
July 14, 2019, 1:59 pm

Gentlemen, As we approach the 50th anniversary of the 'first manned moon landing' as it were, I'm just wondering what proportion of the group believe the whole thing was just an elaborate hoax f... Read more »

Click here for other recent discussions »

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 »