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STK439 Circuit

Audio Amplifier Circuit Using STK439

Transformerless Power Supply circuit diagram

Transformerless Power Supply circuit diagram 240VAC to 5V DC Power Supply using 7805 18V 1A Power Supply using LM350T, LM7818 2 Way To Build A Negative Bias Supply +5v Power Supply using 7805, LP3872ES Variable Dual Lab Power Supply 2 This low noise audio power supply circuit can reduces noise and ripple voltage by 40dB […]

Theater and education

Theater and education Schematic Audio Theater and education Schematic Audio Bus Theater for education RUX C710, DVA-9861E, LCD TV Samsung 19 inch Theater and education Theater and education

LED LINEAR

5 DOT LED LINEAR LEVEL METER DRIVER circuit using KA2284 5 DOT LED LINEAR LEVEL METER DRIVER circuit using KA2284 The KA2284 are a monolithic integrated circuit disigned for 5-dot LED level meter drives with a built-in rectifying a amplifier, it is suitable for AC/DC level meters such as VU meters or signal meters. FEATURES […]

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 […]

TDA1521A stereo audio amplifier circuit

TDA1521A stereo audio amplifier circuit TDA1521A stereo audio amplifier circuit which will deliver 15W audio power output on each channel. TDA1521A stereo audio amplifier circuit is a dual hi-fi audio power amplifier encapsulated.

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