Basic Electronics | Electronics Repair And Technology News

Noise In Wire- How to Successfully Remove Noise In Wire By Using………..

Jestine Yong — Sat, 16 Feb 2019 08:22:14 +0000

Hi my dear readers, in this writing I would discuss about a really simple form of problem in electronic device but a really heavy beast to fight it. Some time I call it “electronic dust”. You got what I mean, I know, yes, I’m talking […]

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12 EMS Quote Pricing Drivers That You Need To Know About

Jestine Yong — Mon, 11 Jul 2016 12:24:53 +0000

Electronic OEMs mostly outsource their printed circuit board assemblies to EMS providers. This helps them reduce their operating costs, and focus on their core business. If you are an OEM, there are chances that you are following the same pattern. As with any other service agreement, you […]

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Source and Load and the Enhanced Light Bulb method

Jestine Yong — Wed, 22 Jun 2016 04:31:48 +0000

Recently in my last repair article about the 750 Watt Power Supply I noticed that a simple Light Bulb like we Electronic Engineers previously used (about 60 to 75 Watt or so), just doesn’t work anymore. The same was the case when I was testing a […]

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Why AC instead of DC and why 50/60 Hz?

Jestine Yong — Mon, 25 Apr 2016 06:08:12 +0000

If you ever asked these questions to yourself, welcome to the club. These two questions are amongst the most frequently asked questions by Electrical/Electronic engineering students. And they are very pertinent questions indeed. To be honest some might have been asked out of frustration, after a few […]

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How To Measure Current With Your Scope

Jestine Yong — Thu, 17 Mar 2016 08:46:17 +0000

1. Your scope as a voltmeter Your oscilloscope is a voltmeter but also a special type of voltmeter. It is a voltmeter that not only allows you to measure the voltage but also allows you to see how this voltage varies in time. When my mechanic friends […]

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Beware when it comes to solder e-caps in PCBs

Jestine Yong — Fri, 20 Nov 2015 00:27:33 +0000

One of the electronic components that is widely used nowadays is the e-caps (electrolytic capacitors). They can be found in all the electronic appliances (more than one) of any brand or model. The capacitor symbol may vary: As you can see in the pictures above there are […]

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LM317 adjustable voltage regulator testing method

Jestine Yong — Wed, 21 Oct 2015 00:24:59 +0000

Some time ago, I got a question from a member to show how to test the LM317 adjustable voltage regulator. I decide to make a simple tester and to show my method of testing this little but very handy component. The LM317 is a three pin voltage regulator, which […]

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Which Resistor to Use with this LED?

Jestine Yong — Fri, 09 Oct 2015 02:24:34 +0000

This is a very simple question, so simple that we usually don’t think too much about it and use whatever we know is working. The voltage might be 5V, 9V, 12V or any other. We know we have to insert a resistor in series with the LED […]

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Earth Leaking Heating Element

Jestine Yong — Sat, 20 Jun 2015 13:58:10 +0000

Moving soon to a smaller apartment with very little storage space we went through a lot of things that we had to get rid of. A rule of thumb was: if we didn’t use the item during the past 12 months it had to go… well, not […]

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Playing with IC’s: Part 3

Jestine Yong — Tue, 02 Jun 2015 10:14:23 +0000

In Part 2- https://www.jestineyong.com/playing-with-ics-part-2/, I thought I had received some damaged IC’s because they were not working right. Then our friend Steven Neo suggested that I had the inductor in the circuit wrong. Of course – that is probably the problem! I can’t believe I […]

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