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PCB prototyping with JLCPCB

Frank Donald May 17, 2018

Prototyping PCB designs is something every electronics enthusiasts and DIY makers should try. I was one of the enthusiasts like you guys who is very eager to prototype my design. And I have found an amazing online PCB production company…
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PCB

pcb, software

Random number generator circuit

Frank Donald April 26, 2018 5 Comments

Random number generators are fun circuits that has applications in games, lottery and so on. While most of the number generators are based on MCU, I thought to build it only using a 555 timer and IC 4026 along with…
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Hobby Circuits

fun circuits, Timer IC 555

10 circuit design tips every designer must know

Frank Donald April 14, 2018

  Circuit designing can be pretty daunting since the things in reality will be far different from what we read in books. It’s pretty obvious that if you need to be good at circuit design you need to understand each…
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Electronics

diy projects

Guide to Pull up / Pull down resistors and its usage

Frank Donald March 29, 2018

Pull up and pull down resistors are integral part of many digital circuits. It is important to understand what is pull up or pull down resistors? Why it is used in digital circuits?  and how to choose the value of…
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Electronic Tutorials

switching

Building a Class B Amplifier circuit

Vladislav Damyanov February 17, 2018

This is for you guys, who are just starting to play around with transistors and op amps. The Class B amplifier is as basic as they come, yet still has a nice and warm sound to it. It is consists…
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Amplifier Circuits

op amp, opamp

Light controlled LED lights and DC fan using IC 555

Frank Donald February 15, 2018

light-controlled-led-beacon-DC-fan

  Timer IC 555 is not dead yet, this is because of the extended functionalities it provides at a low cost. Be it an Oscillator, Timer or Trigger this chip can do a fine job. In this article we are…
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Projects

diy projects, ldr, LED, Timer IC 555

Bench Lab Power Supply 0-50V 0-5A

Vladislav Damyanov January 21, 2018 77 Comments

bench-top-power-supply-project

Every lab needs to be equipped with essential equipment. Out of all I would say power supply is most important since it powers up the projects. Batteries, DC adapters can do fine job but as demand grows and project gets…
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Projects

diy projects, transistors

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