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There are 110062 individual articles here that are part of 10181 discussions
Please see below the list of the most recent and the best rated articles in Hobby Electronics Basics

The most recent discussions

Sayonara, Eagle

January 19, 2017, 6:06 pm

So, I got an email from Autodesk announcing that Eagle is now software-as-a-service, with the pro version renting for $65 per month per seat. Sayonara, Eagle. Too bad. Cheers Phil Hobbs -- D... Read more »

It's hard to filter a spike,

January 19, 2017, 12:41 am

This comes out of my weird 60 Hz pickup thread on sed. It seems like a basic thing, hence SEB. I've got a Fet gate drive that couples, via a common cable into a signal line. (C_couple ~= 10-100p... Read more »

Unfamiliar FET and capicitor schematic symbols

January 10, 2017, 4:05 pm

In the simplified schematic for the Analog Devices AD825 there are two symb ols I haven't seen before. One of them is an FET symbol and the other is a capacitor. These can be seen in Figure 32 on ... Read more »

How is one volt defined?

December 31, 2016, 2:00 pm

Just curious about it. Does every country have its own devices to calibrate one volt in meters? -- @~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!! / v Simplicity is B... Read more »

Dielectric Grease

December 24, 2016, 7:19 am

I had a poorly soldered wire acting up. I smeared some Permatex tune up grease on it and it solved the problem. It doesn't seem to be a good conductor except when 2 metal contacts coated with it ac... Read more »

16000-DPI mouse... how could I sense the power?

December 23, 2016, 12:25 pm

How could I feel the difference between a 16000 DPI mouse and cheap ones? Graphic design? CAD/CAM? ????16,000 DPI 16??LED ThunderX3 TM40 ?????? Source: https://www.hkepc.com/14701/%E6%94%AF%E6... Read more »

Lumen / $ Ratio Up to 800 With Dollar Tree LEDs

December 22, 2016, 2:14 am

Admittedly this ratio isn't as famous as earnings/dividend but . . . Bret Cahill Read more »

Tube (valve) amp really works!

  [ 2 ]
December 16, 2016, 8:42 pm

Some time back I posted a question or two about this tube headphone amp: http://oatleyelectronics.com/files/K272X.pdf . Anyway, I built the thing and while it did amplify it did not seem to color t... Read more »

Re: [OT] Play tic-tac-toe using e-Letters or i-Letters!

December 10, 2016, 3:29 pm

You should start in the corner, not the center. Read more »

Impurities in isopropanol sold as electronics cleaner?

December 5, 2016, 1:58 pm

In the US, it's fairly easy to find 70% isopropanol sold for use as a topical antiseptic & such. In the UK, it's harder to find, but I can buy 100% isopropanol as electronics cleaner & dilute it t... Read more »

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The best rated discussions


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 »


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 »


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 »


12V -> 4.8V linear dc/dc step down

Hello, I need a 12V (car) to 4.8V DC power converter. Tight budget, low energy consumption. Even though it's inefficient, a linear step down converter would work. I'm looking for a circuit design. ... Read more »


Need a circuit (220v to 12) low current.

Hi great forum :) i need a circuit to convert the 220v AC to 12v DC , but without coils (i have no experience in coils ;) ) i saw a circuit many months ago using a capacitor and some other parts i ... Read more »


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 »


Questions in regard to Art of Electronics

I recently started teaching myself electronics in my spare time with the help of The Art of Electronics and its student manual. I have worked my way through the first chapters, but I have some questi... Read more »


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 »


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 »


HC08 development under Linux

I've always been singularly impressed by the people who can make lights blink and robots roll and whatnot. I've been trying a foray into that world for about a month now on and off with the apparen... Read more »