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General Description: The BA3853BFS is a dual-channel electronic volume controller built around a low-noise, low-distortion VCA. It is suited for car-audio applications, and has performance that rivals mechanical-type volume controllers. In addition to volume control, the IC includes all functions required for controlling sound quality, to allow more compact designs with far fewer components. Circuit diagram: Dual-channel electronic volume controller Datasheet for BA3853: Download

Description Although the modular Portable Mixer design available on these web pages has become a hit for many amateurs, some correspondents required a much simpler device, mainly for mixing mono signals. This design should fulfil their needs, featuring three inputs with switchable high/low sensitivity and unusual level-control circuits, providing high overload margins and low-noise figures, proportional to gain-level settings. Low current consumption due to a simple, five-transistor circuitry, allows the Mini Mixer to be powered by a common 9V PP3 battery for many hours.  Circuit diagram:  Parts P1 = 5K P2 = 5K P3 = 5K R1 = 180K R2 = 2M2 R3 = 750R R4 = 1K R5 = 15K R6 = 220R R7 = 1.5K R8 = 820R R9 = 150R R10 = 100K R11 = 180K R12 = 2.2M R13 = 750R R14 = 1K R15 = 180K R16 = 2M2 R17 = 750R R18 = 1K C1 = 1µF-63V C2 = 100µF-25V C3 = 220µF-25V C4 = 100µF-25V C5 = 220µF-25V C6 = 1µF-63V C7 = 100µF-25V C8 = 1µF-63V C9 = 100µF-25V Q1 = BC550C Q2 = BC547 Q3 = BC557 Q4 = BC550C Q5 = BC5...

In support of slight- to way-sized accommodation, you can't pass away ancient times the well-balanced and inexpensive HT-S3500 in plays package. Newly equipped with Onkyo's WRAT (eclectic Range Amplifier skill), the AVR and six-amp synchronize desire disrupt and delight with audio performance you would expect from a added expensive organization. The package is trouble-free to set up due away from home of the box, appreciation to the intuitive HDMI®-overlaid On-Screen put on view and fortification-mountable speakers.  Four HDMI inputs provide connectivity designed for BD players and gaming consoles, and near's an Audio Return Channel to dispatch tube audio through the receiver. Plug your iPod®/iPhone® into the front-panel USB and benefit from transparent, powerful sound with an inbuilt optimizer enhancing the quality of compressed digital song. The AVR decodes Dolby® TrueHD and DTS-HD Master Audio™, and is keen pro 3D games and movies. absolute for replacing an aging procedu...

The MS6714 is a 4 stereo inputs/2-channel outputs digital control Audio Processor for the low voltage operation. Volume, Tone (bass and treble), and balance (left/right) processor are incorporated into a single chip. The MS6714 also has the loudness function and selectable input gain. These functions CAN be built a Hi-Fi Audio system easily. All 2 visit page. functions are programmable via the serial I C bus. The default states of the chip as the power is on are: the volume is -78. 75dB, the stereo 4 is selected, all the speakers are mute and the gains of the input stage, the bass and the treble are 0dB. By MOSA electronics corp. Stereo Inputs And 4-Channel Outputs Volume Tone Balance 

Overview The STK412-000 series are class H audio power amplifier hybrid ICs that feature a built-in shift power supply circuit. These ICs provide high efficiency audio power amplification by controlling (switching) the supply voltage supplied to the power transistors according to the detected level of the input audio signal. Power Sourse of  Two-Channel Shift Power Supply Audio Power Amplifier ICs 180W + 180 W Circuit diagram and other info view

Opto-Isolated 4-Channel Triac Board (R) is used for fast switching applications. Ideal for switching mains circuits, lights, appliances and small load. Each circuit is effectively isolated with opto-isolators on each channel, TTL inputs control each channel. Trigger input 2-12 VDC Mains supply input 230 VAC or 110 VAC Output 1 A @ 230 VAC (RMS ON STATE CURREN 4 AMPS EACH CHANNEL) Snubber circuit for inductive load Jumper for common cathode ground Box Header connector for connection of control signal Screw terminal connector for Load Four mounting holes of 3.2 mm each PCB dimensions 139 mm x 73 mm [ ]