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Posts tagged TDA4686

Ignite Video Processor with AutoScout Cut-off Control

Video Processor with Automatic Cut-off Control using TDA4686 Video Processor with Automatic Cut-off Control using TDA4686 General Description The TDA4686 is a monolithic integrated circuit with a luminance and a colour difference interface for video processing in TV receivers. Its primary functions is to process the luminance and colour difference signals from a colour decoder […]

How to Make 2.3 GHz Pre-Amp (Part 1)

This article is own by Grant Hodgson. . Eagle-eyed readers may have noticed the reference to an ATF-54143 in John G3XDY’s notes on the pre-amplifier testing results at the November Adastral Park round table, published in the March 2002 Newsletter. Here are some more details of this pre-amp which has some rather interesting properties :- […]

Electronics Schematic Diagram alarm Door Bell circuit using IC UM 66 part 1

This is a slight modification of that circuit. In the previous circuit you have to keep the switch pressed for making the IC play the full music. Here if once the push button is pressed C1 is charged and the transistor Q2 will keep the IC playing the music till it ends. The time for […]

audio distribution amplifier

audio distribution amplifier using UM66, BC547, AC187, 1N4148

TDA2822

TDA2822 Car audio amplifier schematic diagrams. 60W Car Audio Amplifier Circuit using TDA2822M TDA2822

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