Schematic Power Amplifier and Layout

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amplifier diagram using 2N3250, 2N2219, 2N2210, 2N3055

DTMF control RELAY SWITCHING circuit using M8870, 4013, BC548

5 BAND Audio GRAPHIC EQUALIZER AMPLIFIER using KA2223 5 BAND Audio GRAPHIC EQUALIZER AMPLIFIER using KA2223 The KA2223 is a monolithic integrated circuit consisting of an operational amplifier with five resonant circuits and a active filter, an it is suitable for radio-cassette tape recorders, car stereos or music center audio systems. FEATURES Tone control with […]

Electric Heating circuit Electric Heating and Solar Water Heating System Controller Circuit