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 How to basic use LEDs

Friday, April 17th, 2015

My son is very interested in the LED. He want to created the simple LED flasher circuit. But we should learn the principles of the LED before. Started to use the LED circuit as Figure 1. Includes Battery, Resistor and LED – Its shape – symbols (When drawing the circuit, if the actual shape it […]

 50W-75W Stereo power amplifier using TDA2050

Tuesday, April 14th, 2015

We used the TDA2030 to build many power amplifier projects, but they have lower power than 30 watts. Today, we try to use the TDA2050, which has the output power about 50 watts that shape and easy to use as well. This project is stereo that easy to builds can adjust volume, tone and balance […]

 Low volts stereo preamplifier with tone control circuit

Saturday, April 4th, 2015

This is the simple stereo amplifier for headphone with tone control circuit that use 1.5V X 2 only. It is used for mini MP3 player or other small source. I like it that use a few parts and low power. How it works To begin with this circuit will connect the switch-S1, to apply the […]

 Today we will learn about the resistors

Thursday, April 2nd, 2015

Hi, I intended to learning homeschool for my son. Which he like the Electronics projects circuits same me. I have teach a simple electronic learning, may not correspond to the process of learning from the normal school. Today we will learn about the resistors 1. How does it shape? He said that looks like a […]

 Simple Two Transistors AM Transmitter Circuit

Saturday, March 28th, 2015

This simple AM transmitter include of many parts. There is a transistor Q1 act as increase the audio signal (AF) from the crystal microphone and a resistors-R3 that limit amplitude of sound signal is increased by Q1 The transistor – Q2 generate a radio frequencies (RF) in form of the colpitts oscillator circuit. The inductance […]

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