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NOISE REDUCTION PROCESSOR circuit

NOISE REDUCTION PROCESSOR circuit DOLBY B-TYPE NOISE REDUCTION PROCESSOR KA2271 DOLBY B-TYPE NOISE REDUCTION PROCESSOR KA2271 The KA2271 is a monolithic integrated circuit designed for use in Dolby* B-type reduction systems. FEATURES Few external components Low quiescent circuit current (Typ Iccq=4.3mA) High crosstalk rejection ratio. Built-in NR-switch, REC/PB-switch. Recommended supply voltage: Vcc=8V~16V.

VU Meter Schematic

meter circuits VU Meter Schematic using 78L05, AD8313, LM324

DIY Intercom Circuit

DIY Intercom Circuit Intercom Cable Full-duplex Intercom circuit schematic , cable on the way to the intercom circuit

shows passive components, resistors, capacitors and inductors, and also electrical components such as switches, relays, motors and lamps – symbol

The diagram below shows passive components, resistors, capacitors and inductors, and also electrical components such as switches, relays, motors and lamps. In europe the for the resistor is a rectangle, whereas the US symbol is a zigzag. On my site, schematics may be drawn with european or US symbols, depending upon which of my circuit […]

STK 100W Audio Amplifier Circuit

100W Audio Amplifier Circuit using STK0100, 2SA984, D5442, 2SC2912, 2SC2274, 2SA608

SCHEMATIC DIAGRAM Relay Driver Board Project

This article means to utilize your old PC to be come a simple controller. Many old PC like 8088 type, 8086, 80286, 80386, or even 80486 already become an obsolete systems. This board using 8-bits of LPT printer parallel data port (DP) to activate the relays. LPT printer parallel port also have 4-bits additional port […]

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