Advertisement
Brick-wall lowpass audio filter needs no tuning – Circuit Schematic
Brick-wall lowpass audio filter needs no tuning
The filter should provide adjustable gain to maximize SNR at the audio processor's first stage. The filter's frequency response should also include a notch at 1...
Audio Mixer transistorized circuit – Circuit Schematic
Audio Mixer transistorized circuit
If two of these circuits are made in the same enclosure for stereo, then there can be a single power supply to run both of them. There should be a resistor in s...
High Quality Audio Mixer – Circuit Schematic
High Quality Audio Mixer
This project is probably the most ambitious so far, and can be expected to be very expensive. On the positive side, it is also capable of excellent performance,...
Portable Mixer – Circuit Schematic
Portable Mixer
The target of this project was the design of a small portable mixer supplied by a 9V PP3 battery, keeping high quality performance. The mixer is formed assembli...
6 Input Mixer – Circuit Schematic
6 Input Mixer
The mixer circuit below has 3 line inputs and 3 mic inputs. The mic inputs are suitable for low impedance 200-1000R dynamic microphones. An ECM or condenser mic...
Audio Modular MIXER with 6 and up input Channel – Circuit Schematic
Audio Modular MIXER with 6 and up input Channel
A lot of friends ask me a circuit AUDIO MIXER, for various uses. I will begin with a circuit which you can it manufacture, as you want. This you can place in th...
2Channel + Microphone Stereo Mixer – Circuit Schematic
2Channel + Microphone Stereo Mixer
A lot of friends me asked to draw a more shrunk circuit 2-ch mixer, which will contain also, operation CROSSFADER. The circuits can be modified and added also o...
High-End Audio Modular Preamplifier – Circuit Schematic
High-End Audio Modular Preamplifier
This preamplifier is requirement result of many friends to give a high quality preamplifier, capable to drive high quality power amplifiers with good sound, it`...
Phono RIAA Preamplifier – Circuit Schematic
Phono RIAA Preamplifier
In this circuit exists a second designing proposal of preamplifier RIAA. The first stage uses discernible components and in second exist a opamp. [IC1]. In the ...
Computer Microphone preamp – Circuit Schematic
Computer Microphone preamp
The sound card for a PC generally has a microphone input, speaker output and sometimes line inputs and outputs. The mic input is designed for dynamic microphone...
Hi-Fi Phono Preamp (RIAA Equalisation) – Circuit Schematic
Hi-Fi Phono Preamp (RIAA Equalisation)
The phono preamp shown has an accurate RIAA equalisation curve, is very quiet, and offers far better sonic performance than the vast majority of those seen in m...
Simple High Quality Preamp For Hi-Fi – Circuit Schematic
Simple High Quality Preamp For Hi-Fi
For those who are still with me, the preamp featured has optional tone and balance controls which may be omitted if desired (although I do not recommend this ge...
Phono Preamps For All – Circuit Schematic
Phono Preamps For All
This is a collection of phono (black vinyl for the youngsters) preamps and equalisation circuits, one of which is sure to meet your requirements. These are not ...
Simple microphone preamplifier – Circuit Schematic
Simple microphone preamplifier
This is a simple microphone preamplifer circuit which you can use between your microphone and stereo amplifier. This circuit amplifier microphone suitable for u...
Audio Line High-End Preamplifier with ICs – Circuit Schematic
Audio Line High-End Preamplifier with ICs
Afterwards the Modular preamplifier presentation good is I present also a simpler circuit in the manufacture but very good quality. And in this circuit the phil...
Audio Preamplifier with Digital Volume – Circuit Schematic
Audio Preamplifier with Digital Volume
The circuit is a preamplifier with digital regulation intensity of sound. He is separated in three departments. In first schematic (Fig.1), is found the circuit...
Phono Preamplifier – Circuit Schematic
Phono Preamplifier
In recent years, following CD`s introduction, vinyl recordings are almost disappeared. Nevertheless, a phono preamplifier is still useful for listening old viny...
Phono RIAA Preamplifier – Circuit Schematic
Phono RIAA Preamplifier
The circuit use one simple, but good power supply, is enough its armor-clad by the remainder circuit, if it needs, with a aluminium, so that we avoid the noises...
Three Tube PHONO (RIAA) Preamplifiers with ECC83 – Circuit Schematic
Three Tube PHONO (RIAA) Preamplifiers with ECC83
It is three circuits of RIAA, amplification of low signals of heads [MM], following different solution, each one, as long as it concerns the eq. In the circuit ...
Stereo Preamplifier with adjustment tone – Circuit Schematic
Stereo Preamplifier with adjustment tone
Many times we needed to use a simple circuit of preamplifier, with few components and facility of made. This circuit use a opamp. the Motorola, TCA5550, that c...