QRK-LDV - Four-LED Driver


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The QRK-LDV four-LED driver is optimally suited as a voice indicator in a QRK-style system. The shared current-limit resistor is best suited to one LED being 'on' at a time.

QRK-LDV operates from 12Vdc and provides about 10mA of LED current. The stock LEDs are green standard-brightness 3mm round.

QRK-LDV is useful with QRK-SF or QRK-SR, but not required if either QRK-RLY or QRK-FET are present.

Kit requires assembly.

PCB size: 1.35" x 1.1" (35 x 28 mm)

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London Power was founded in 1990 by Kevin O'Connor, after two decades of research into innovative audio amplification techniques. Kevin is an audio designer, author and speaker, known for his proprietary methodology called Power Scaling, and for his eleven books on audio subjects. Whether you seek amps, kits or information, you'll find useful answers here on not just the "how" but the "why" of audio amplifier design. Please enjoy the information on this site, and don't hesitate to contact us with questions.

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