Hobby Electronics Basics - Main Page

Do you have a question? Post it now! No Registration Necessary

Hobby Electronics Basics - for you, electronics enthusiasts!
Web, RSS and Social Media interface to sci.electronics.basics
There are 99667 individual articles here that are part of 9255 discussions
Please see below the list of the most recent and the best rated articles in Hobby Electronics Basics

The most recent discussions

Failure mode of LEDs in overcurrent situation


December 6, 2019, 7:07 pm

I'm curious about what happens to an LED when it is exposed to a moderate overcurrent situation. This question came about as I was troubleshooting some small white LED lights I built using 3 5mm L... Read more »

Crimping technique?


December 6, 2019, 12:35 pm

Is a crimping tool supposed to work on these things? https://www.dropbox.com/s/hnflor5ratjg06s/CrimpingMaleHeader.jpg?raw=1 All of my attempts so far have splayed three of the four squashable secti... Read more »

Roof co-ax amp supply question


November 29, 2019, 1:01 pm

Hi All, I want to test out an in-line aerial amp and have supplied it with 12V battery and circuit for testing as below glummed from the web and spares. I can build things but am no shakes on rea... Read more »

Ads On the Circuit Board


November 16, 2019, 4:57 am

OK, you take something apart 'cause it's broke and you already suspect it was _designed_ to break. Yer suspicions get confirmation and when you get inside. The circuit board has a message printe... Read more »

Servo motor recommendation sought


November 7, 2019, 6:47 pm

For my plotter project I have experimented with a variety of different servo motors. Very cheap analog micro servos work very well (I have been using Tower Pro SG90s), as you can see from the ima... Read more »

Misusing a transformer


November 4, 2019, 3:55 am

Just a sanity check if you don't mind. I have a 230v to 30v 1amp 50Hz transformer - is there anything wrong with plugging that into 115v 60Hz to get 15v 1 amp out? Read more »

Diode test and identify


November 3, 2019, 4:55 pm

trying to fix AC/DC power plug. I have a Diode that says: GW327 SR560 I THINK this is a Schottkty Diode. Setting meter to Diode test, Im getting, 1.71 Forward and Reverse .171. Normally on ... Read more »

motor wiring / Keeps starting and stopping


October 30, 2019, 3:45 pm

I have motor that was removed from my furnace when a new furnace was installed. I know the motor is good as I replaced it few years. (2 Y Old). At the time, instead of replacing the motor with a Fur... Read more »

Original Equipment Needs To Shut Down Or Alert If the Circuitry Is Altered ...


October 17, 2019, 4:20 pm

Temperature might be one way of doing it. Any subsequent history of soldering would flag a problem. Board watching cameras might be the easiest cheapest way to preserve the integrity of a device. ... Read more »

It Wouldn't Take Much Affer Marketry Circuitry To Mitigate This Problem


October 11, 2019, 4:03 am

No need to spend $5K on a Powerwall. Home owners wif grid ties should be able to flip a switch when the utility goes AWOL. Then they can refreeze the cheese & meat in the refrigerator and charge up... Read more »

Click here for other recent discussions »

The best rated discussions

rating
5

Where to buy a small wheel hub motor?


Specifically, where can I buy a high quality small wheel hub motor (with wheel) like the one used for powered Trikkes? http://www.trikke.com/hd_2/Refurbished-Trikkes/Tribred-E-Kit-Upgrade http://www... Read more »

rating
5

Satellite radio - radio validation


I'm curious, can someone provide a simple several paragraph, basic explanation of how satellite radio authentication works? eg. If the radio is only a receiver and I cancel my subscription how does ... Read more »

rating
5

Max Frequency of SM 118A counter?

  [ 2 3 ]

Anyone know the maximum frequency of a Heathkit SM-118A? I have been all over Google with little luck. One guy said it would go to 1 GHz maybe 2 GHz, I don't think so. ... Read more »

rating
5

Software for PIC 16F876


Hello, I want to built a simple datalogger with a PIC 16F876, and found a nice schema on the net. My problem: te software (source) is written in C, but i need a hex files to program the PIC processor... Read more »

rating
5

Soldering Copper to Phosphor Bronze


Does anyone know if soldering copper wire to Phosphor-Bronze make a solid and reliable electrical connection? Would it make much of a difference if the copper wire is stranded or solid? If there is a... Read more »

rating
5

Best Light for reading?


When choosing a Flourescent Bulb for a Task Light what is the best for reading.......my choices are 2700 Kelvin, 3000, 3500, or 4100..... Read more »

rating
5

Thought experiment-will this work?


I think I pretty much understand how induction motors work. A typical single phase motor has a start winding that is approximately in quadrature electrically to the run winding. This provides the p... Read more »

rating
5

How do you test a capacitor?

  [ 2 ]

Just bought a generator and it failed within two hours of usage. Mfg. say maybe capacitor and will ship a new one. But am not sure. I have a voltmeter with capacitor readings. Know how to test for re... Read more »

rating
5

Electronic parts sites


I am looking for sites that sell electronic components. I have Jameco, but they don't have a lot of components. Thanks, Andy Read more »

rating
5

UCANDO videos


If anyone has any old ucando videos on the subject of AC or DC or power supplies or amplifiers or any basic stuff and you want to sell them, at a resonable used price, I'd be interested. I'm just ... Read more »