Here is the circuit diagram of stereo digital volume control. This circuit could possibly be applied for upgrading your manual volume ma...
Surround Sound Decoder
The following diagram is an small surround sound decoder schematics. You may use this decoder surround sound systems for your home audio s...
Sleeping-Aid
Device purpose: Many people experienced sleeping well in natural surroundings, into a tent or a wooden hut. This fact is due not only ...
FM transmitter (1Km Range) for MP3/MP4 Player, PC, mobile Phone – using 2n2218 & 741
Evolution FM transmitter (1Km Range) with 2n2218 with audio amplification step using LM741 op amp with audio input for MP3, MP4, mobil...
LM317 Calculater toolkit
Program to calculate the resistance to an LM317 / LM117. Interesting for those who want to design circuits with donte horny LM317 re...
Turns your PC into a flexible & powerful audio signal generator
SigJenny turns your PC into a flexible and powerful audio signal generator for free can create multiple waveforms, sweep, fire single or...
Remote-Controlled Fan Regulator Circuit Diagram
Using this circuit, you can change the speed of the fan from your couch or bed. Infrared receiver module TSOP1738 is used to receive the...
Dark Activated Lamp using Triac
This circuit will turn on an AC Bulb when the sun sets, the working of the circuit is simple and the heart of this circuit is an LDR (Lig...
IR Transmitter Tester (New version)
IR(infrared) transmitter tester V2.0 The first version of this circuit can find Here . This new version is perfect because it includes ...
2.1 speaker systems satellite subwoofer using TDA2030 (3 x 18 Watts)
This project is Power Audio Amplifier with TDA2030 2.1 Chanel – 3 x 18 Watts – Sub-woofer – Complete With PCB suggestion and power sup...
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The explained circuit in this article is probably the simplest and the cheapest, since it employs minimum number of components and the m...
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The ZN414 is a low cost, single-chip AM radio integrated circuit. Launched in 1972, the part was designed and supplied by Ferranti. The ZN...
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It is a very simply 220 V or 110 V operated 1 watt LED driver circuit, that would cost you not more 1/2 a dollar, excluding the LED o...
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Graphic Equalisers are a must in any good hi-fi systems! They enable you to shape the response of the system to the particular room, ...
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This circuit will turn on an AC Bulb when the sun sets, the working of the circuit is simple and the heart of this circuit is an LDR (Lig...
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