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Preamps Microphone Mixer circuit

Preamps Microphone Mixer circuit Choosing a good power amplifier is very easy but to choose the perfect microphone preamps is not easy, because the adjustment of sound pressure level (SPL) with volt level (dBu). Matching microphones and preamplifiers requires proper research and measurement, so to do this does not depend on your budget – but […]

Trouble with TV with using vcr and cable splitter?

Unknown Prince asked: I have two tv’s im using. Im having trouble getting a clear picture on either of the tvs. Im trying to set up a kind of mini closed circuit. But, each tv has a fuzzy picture. Can anyone tell me why and how to fix it? Here’s the set up: >TV 1 […]

VCO circuit diagram

voltage controlled oscillator vco circuit diagram using lm358

Audio Amplifier Circuit Using STK4151 II

Audio Amplifier Circuit Using STK4151 II

45W Power Amplifier circuit

45W Power Amplifier circuit using HA13001

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