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Archives for RF amplifier

Booster Antenna

Booster Antenna Circuit Antennas that are much shorter than 1/4 wavelength present a very small and highly relative impedance that is dependent on the received frequency. It is difficult to match impedances over a decade of frequency coverage. Instead, input stage Q1 is an FET source-follower. A high-impedance input successfully bridges antenna characteristics at any […]

STK Audio Circuit

STK Audio Circuit using STK4372 STK Audio Circuit Audio Amplifier Circuit With Bass Boost Using STK4372 Stereo Power Amplifier STK Audio Circuit with STK. Simple and low cost power amplifier. The optimal accumulation voltage is about 30V

28W Audio Amplifier Circuit using STK4311

28W Audio Amplifier Circuit using STK4311

Loudspeaker Protection Circuit is really simple

Loudspeaker Protection Circuit is really simple, but the function Loudspeaker Protection Circuit is very important, because the Loudspeaker Protection will provide protection to Loudspeaker and other component. Because if the DC current flowing to the speakers must be disconnected as soon as possible. There are several issues that need to be resolved to ensure that […]

Decade counter 4017

Decade counter 4017 and Audio VU Meter Circuit 4017 Decade counter 4017 and Audio VU Meter Circuit 4017

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