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AD1865 based audio DAC with I2S input and voltage output – Circuit Schematic
AD1865 based audio DAC with I2S input and voltage output
Circuit AD1865 is considered like best 18bit stereo audio DAC ever. I already built another DAC, that I will not say everything again. However I found, that cur...
10x TDA1543 NOS DAC – Circuit Schematic
10x TDA1543 NOS DAC
In supply section after bridge rectifier and smoothing capacitor is used common voltage regulator LM317, which has with R1 and R2 adjusted output voltage about ...
Theremin – Circuit Schematic
Theremin
THE PRINCIPLE of operation of the RCA Theremin is that of the beat frequency oscillator, The frequency of one oscillator may be varied by the capacity change ca...
USB Laptop Fm Modulator – Circuit Schematic
USB Laptop Fm Modulator
A usb powerer laptop Fm transmitter using for home theater and other woofer that have fm reciever to transmits songs of laptop to sound system of ur room....
A practical MS Decoder Circuit – Circuit Schematic
A practical MS Decoder Circuit
The schematic diagram of the MS Decoder may look complicated but is actually quite simple. Both the Mid and Side signals are initially buffered by unity gain in...
9700s Analog Synth Modules – Circuit Schematic
9700s Analog Synth Modules
Circuits that use a temperature compensating resistor have a small error because the tempco`s resistance is a function of temperature T, rather than 1/T as is t...
Abbey – Circuit Schematic
Abbey
This is one of the original brand-name folders created for the site, and for almost three years it has been empty, just someone`s distant memory - suddenly we h...
Consumer Audio Information – Circuit Schematic
Consumer Audio Information
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Conference MIC – Circuit Schematic
Conference MIC
If the audio output is connected to equipment that has a balanced input circuit with a separate ground connection, the ground connects to OUTPUT terminal # 1. T...
Spring Reverb – Circuit Schematic
Spring Reverb
A listener standing some distance from a sound source will perceive sound that is actually a combination of direct sound and indirect sound that has been reflec...
Analog 6-channel Home Theatre Audio Project – Circuit Schematic
Analog 6-channel Home Theatre Audio Project
The overall block diagram of the system. Audio comes in at the left, and is summed, differenced, multiplied, delayed, filtered, and all other imaginable manipul...
Optical Theremin – Circuit Schematic
Optical Theremin
As part of the National Instruments Tinker, Learn, and Do Engineering with NI myDAQ course ware, the hands on experiments demonstrate the wide range of possibil...
Audio – Circuit Schematic
Audio
This lab will demonstrate the theory and operation of non-inverting amplifiers as well as their practical application to amplify the signal of a microphone. We ...
sonic defender – Circuit Schematic
sonic defender
Generate the 10-Hz waveform that modulates the 3-kHz tone that is generated by U1C and D, Ql drives the transducer through a 8-Q:l-kS2 transformer. R4 might req...
ultra flanger guitar effect – Circuit Schematic
ultra flanger guitar effect
I have made a major correction to the schematic as a result of getting a second board going. The manual sweep circuit should return to ground not vref. I also i...
train chuffer – Circuit Schematic
train chuffer
The circuit consists of a white noise generator which only switches on with the high part of the square wave output from the clock circuit. The frequency of the...
guitar and bass tuner – Circuit Schematic
guitar and bass tuner
The heart of the circuit is IC2, a 50240 top-octave generator. That device uses a single input-frequency to generate all twelve notes of the musical scale. The ...
Audio Noise Generator Schematic – Circuit Schematic
Audio Noise Generator Schematic
This simple circuit generates both white and pin noise. Transistor Q1 is used as a zener diode. The normal base-emitter junction is reverse-biased and goes into...
analog delay line (echo and reverb) – Circuit Schematic
analog delay line (echo and reverb)
E clock frequency between 5 and 50 kHz, delay time can be set between 51. 2 and 5. 12 ms. The clock frequency must be at least twice the highest audio frequency...
Guitar phaser effect – Circuit Schematic
Guitar phaser effect
Each CdS cell acts as a variable resistor in a single variable phase-shift circuit and there are six such individual phase shifters arranged in series, each inc...