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 Peak Hold LED stereo VU meter using L1424

Saturday, June 20th, 2015

This VU-meter can show peak signal on 12 LEDs stereo system and use L1424 as main so easy to build. The importance of the VU-meter, In addition to shows the level of signal and add colorful on the audio system or others tools. The Peak-hold VU-meter have 2 channel or stereo. The main goal of […]


 Electronic VU meter by LM3914 and LM3915

Wednesday, June 17th, 2015

Here is High performance LM3914/LM3915 VU meter projects that widely popular can display with 20 LEDs on stereo or mono with 10 LEDs for all audio system.And can easily build and cheap you must happy when use it. This electronic VU meter set is circuit that High performance and widely popular than 40 years. This […]


 LM8365 alarm digital clock for beginners

Saturday, June 13th, 2015

Today I highly recommend the alarm digital clock Another interesting project. Suitable for beginners It is small, easy to build, use IC number IC use LM8365 is at the heart. Includes all functions within a single IC. Thus, it is more efficient than this project, read below: Feature: _Designed as Model all parts on one […]


 Building the electronics workbench table by Chayapol

Friday, June 12th, 2015

We moved to a new office up more space. I have a large work desk, length 220cm, width 85 cm, height 80 cm. Fit for the room. We like this desk, but expensive. so want to build myself. Can fit into the space, proper the height, for my son. We choose the material is wood. […]


 TA8225 BTL Amplifiers circuits

Thursday, June 11th, 2015

There is my friend want a TA8225′s PCB. But I not have it. Thus I search on internet. The TA8225 is BTL audio power amplifier for consumer application. It is designed for 45W high power, low distortion and low noise. It contains various kind of protectors and the function of stand by SW. In addition, […]


 Making a solar powered small fountain

Wednesday, June 10th, 2015

Chayapol do everything as the solar cell system. I think it is useful, therefore, to buy a solar powered small fountain Kits it created a lot easier. The main device consists of – The 1.2 watts 6v 120mA solar cell Solar cell as Figure 2 – the small fountain pump as Figure 3 is Solar […]


 Daylight sensor switch circuit to control an artificial waterfall by Chayapol

Tuesday, June 9th, 2015

My wife would like to control an Air pump (looked like this projects), to works only daylight hours. To save electricity and help extend the use of the air pump. I so select a light switch controller Because there are less devices and easily build. Which is circuit diagram below: Figure 1 the daylight sensor […]



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