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Posts tagged Simple Microphone Preamp with AGC

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

NOISE REDUCTION PROCESSOR

NOISE REDUCTION PROCESSOR DOLBY NOISE REDUCTION PROCESSOR circuit using KA22712 DOLBY B-TYPE NOISE REDUCTION PROCESSOR The KA22712 is a monolithic integrated circuit designed for in Dolby* B-type noise reduction systems. FEATURES Few external components. Low quiescent circuit current (Typ Iccq=4.5mA) High crosstalk rejection ratio. Built in NR-switch, REC/PB-switch. Recommended supply voltage: Vcc=6.5V~16V. DOLBY  NOISE REDUCTION […]

op amp circuit

op amp circuit using IC TL074, TL084, LM324 Stereo Gigabass circuit using IC TL074, TL084, LM324 Stereo Gigabass circuit using IC TL074, TL084, LM324

RF Detector circuit using 2n5484

RF Detector circuit using 2n5484

Bass power amp

Bass power amp using MJL4281, BD139, BC559

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