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> Optocoupler, analog photocell, high dynamic range qty:2
Optocoupler, analog photocell, high dynamic range qty:2
Qty: 2 Audio Optical Coupler Qty: 2
Huge dynamic range: over 100,000: 1 resistance ratio
Audio Opto Coupler ( NSL 7053)
Used extensively in audio compressors, audio level controls, audio limiters, expanders/noise gates, guitar tremolo effects, guitar amplifiers, and musical instrument effect boxes.
Photocell has light-averaging characteristics, which responds to the envelope of a changing signal.
Inside the black case is a 2 lead photocell (not a photodiode or photo-transistor) and a 2 lead LED. This is why the device finds extensive use in audio applications (photocell instead of photodiode).
The LED requires about 10-16mA current and the resistance of the photocell varies from 150K up to megohms when the LED is off to under 400ohms when the LED is on. New. NOTE: Dot on case marks the cathode (-) lead of the LED.
