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Posts tagged Low noise transistors for electret mic

Portable Mic Pre-amp 2 transistor

Portable Mic Pre-amp 2 transistor using BC549C, BC547B

Op-Amp Microphone Pream

Op-Amp Microphone Pream using NE5534 IC

Low Power Quad Operational Amplifier

Low Power Quad Operational Amplifier using LM124, LM224, LM324, LM2902   Low Power Quad Operational Amplifier using LM124, LM224, LM324, LM2902 Description The LM124 series consist of four independent, high gain, internally frequency compensated operational amplifiers Features supply to 32V or dual supplies 15V to 16V

stk Audio Amplifier scheme

stk Audio Amplifier scheme 30W Audio Amplifier Circuit using STK1030

Inverter circuit using CD4047

Inverter circuit using CD4047 12V DC to 220V 100W Inverter

Audio Selector Circuit

Audio Selector Circuit

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