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STK439 Circuit

Audio Amplifier Circuit Using STK439

How To making stereo noise filter

How To making stereo noise filter stereo noise filter Schematic using BC547B, BC547C Noise reduction circuit

Circuit Diagram Radio Stereo Coder Multplexer Part 1

Circuit Diagram Stereo Coder Multplexer Multiplexer consists of 4 TTL ICs and transistors. A 7600-kHz crystal oscillator built with the 3-NAND The IC’s 2 and 3 of type SN7490. Now think of 76 kHz signal as a divider of two Werken. Either 38 kHz signal and the output Q Qnot decreased. Transistors T1 and T2 […]


A PLC works by continually scanning a program. We can think of this scan cycle as consisting of 3 important steps. There are typically more than 3 but we can focus on the important parts and not worry about the others. Typically the others are checking the system and updating the current internal counter and […]

CIRCUIT DIAGRAM 100 watt simple mosfet power amp

Here the CIRCUIT schematic diagram of 100 watt audio amplifier with MOSFET. … The huge collection of electronic circuit diagrams are provided here… … 100W RMS Amplifier · 0-30V Stabilized Variable Power Supply with Current Control

Circuit diagram DTMF Decoder using HT9032A MT88L70 HT9202H

Circuit diagram DTMF Decoder using HT9032A MT88L70 HT9202H This exciting project and something that many have been developed, but always remains to add some improvements. The DTMF decoder circuit for distinguishing some separate external components to produce devices capable of sending binary code from a button on the multi-tone phone. This circuit, in addition to […]

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