The circuit is a easy design an Oscillator. The main component consists of the VCO (ICL8038), the CMOS-compatible output stage using the MOSFET driver chip ICL7667 and the sine and triangle output stage (LT1210). It is capable of producing sine, triangle and square wave output with a frequency up to several hundred [...]
This is mini sound level monitor project. It will display fluctuating light bars as response of audio signal from Electret Microphone. The louder sound that come into this device, the brighter the light bar. This project use alkaline battery as power source.
The ‘brains’ of this project is a LM358 general-purpose op-amp. The front part [...]
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