1.5 GHz Frequency Counter
Audio Spectrum Analyzer
This is a real time LED Audio Spectrum Analyzer. You can embed this unit in an audio system or use it as a stand-alone unit. The LED Spectrum Analyzer can display a real-time bar-graph spectrogram...
5V Mini Power Supply
This is a 5V mini power supply unit. It is capable of driving an 1A load at excellent line and load regulation. The circuit is based on the LM2575N-5 step-down switching regulator.
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