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Scoreboard circuit

Scoreboard circuit using 7447, 74192

A simple low cost LED pulser

A simple low cost LED pulser using a 555 timer device A simple low cost LED pulser using a 555 timer device

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 […]

Electronic circuit diagram Low distortion audio amplifier Using LA4145

Electronic circuit diagram Low distortion audio amplifier Using LA4145

LED LINEAR

5 DOT LED LINEAR LEVEL METER DRIVER circuit using KA2284 5 DOT LED LINEAR LEVEL METER DRIVER circuit using KA2284 The KA2284 are a monolithic integrated circuit disigned for 5-dot LED level meter drives with a built-in rectifying a amplifier, it is suitable for AC/DC level meters such as VU meters or signal meters. FEATURES […]

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