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Posts tagged Electret Microphone Preamplifier

Microphone Circuit with tone control

Microphone Circuit with tone control using TL072

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

Make mixer and a mic pre amp used tr BC177 or BC558

Make mixer and a mic pre amp used tr BC177 or BC558 This is the schematics of a simple low cost mic mixer that can be assembled from the components in your junk box. This two channel mike mixer is designed for handling high impedance dynamic microphones. Transistor Q1 can be any general purpose pnp […]

Best and simple Power Amplifier circuit diagram using 2N3055 NPN type power transistor

Best and simple Power Amplifier circuit diagram using 2N3055 NPN type power transistor The optimal supply voltage is around 50V, but this amp work from 30 to 60V. The maximal input voltage is around 0.8 – 1V. The and transistors can be any NPN type power transistor, but do not use Darlington types… The output […]

Touch Switch Circuit

Touch Switch with Active Remote Circuit using PN2907, 2N2222, 74C14

Schematic diagram of the MAX2338 hp at the sound amplifier

The MAX2338 receiver RF front-end IC is designed for dual-band CDMA cellular phones and can also be used in dual-band TDMA, GSM, or EDGE cellular phones. Thanks to the MAX2338’s on-chip low-power LO divider, the cellular VCO module can be eliminated. The includes a low-noise amplifier (LNA) with an adjustable high-input third-order intercept point (IIP3) […]

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