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Power amplifier 65W with HEXFET
Power amplifier 65W with HEXFET
April 13, 2010

A medium power amplifier that is characterized by a lot of good sound quality, but simultaneously is very simple in the construction. [more]

Mini Power Amplifier 30W
Mini Power Amplifier 30W
April 13, 2010

Many times we needed a small power amplifier, but good quality, made from distinguishable components. The design does not have any innovation. In the power stage exist a pair of transistors Darlington in package TOP3,... [more]

Power Amplifier 50W [Osu IEEE]
Power Amplifier 50W [Osu IEEE]
April 13, 2010

This simple audio power amplifier was originally designed for a circuit board workshop, conducted by the OSU IEEE Student Group. At the workshop, 20 participants each constructed this amplifier, by etching and drilling the single... [more]

Mic-Line Balance input
Mic-Line Balance input
April 13, 2010

A professional suggestion for those interested in improving sound. The circuit constitutes the part of input mixing console sound from the microphone or source of high level . It can be used on it's own... [more]

Audio Modular MIXER with 6 and up input Channel
Audio Modular MIXER with 6 and up input Channel
April 13, 2010

This you can place in the MODULES of inputs any circuit you want, depending on the use that you intend the MIXER, the same is also for the number of input channels, that you will... [more]

2Channel + Microphone Stereo Mixer
2Channel + Microphone Stereo Mixer
April 13, 2010

2Channel + Microphone Stereo Mixer [more]

Peak indicator
Peak indicator
April 13, 2010

A simple circuit peak indicator of tops of musical signal. Each time where the level of signal exceeds the level + 4dB, turns on led D1. It is useful in each channel of console of... [more]

Balance input with Gain and Volume
Balance input with Gain and Volume
April 13, 2010

Circuit with electronic symmetrical input, with possibility of regulation of the gain from the pontesometer RV1 and the level of signal with the RV2. The quality of pontesometer RV1 (as other material), should be very... [more]

Modular Preamplifier with IC Class A
Modular Preamplifier with IC Class A
April 13, 2010

An application, which is considered, of very good quality sound since the entrance transistors are working at Class A. The quality of sound depends to a large extent on IC1, which must be of good... [more]

Audio Preamplifier with Digital Volume
Audio Preamplifier with Digital Volume
April 13, 2010

The circuit is a preamplifier with digital regulation intensity of sound. He is separated in three departments. [more]



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