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The radio designer "Universal Two-Channel Noise Reducer" since 1986 produced the Kamenetz-Podolsky plant "Electrical Appliance".
The designer allows you to assemble a universal two-channel noise suppressor from radio components on a printed circuit board, designed to work in the paths of high-quality stereo sound reproducing devices.
The working range of sound frequencies is 20 ... 20,000 Hz.
Nominal input voltage 0.25 V. Supply voltage - 12 ... 15 V. Input resistance - 30 kOhm.
The transmission coefficient is 1. The harmonic coefficient at the output is 0.5%.
Noise reduction 10 dB.
Transient attenuation between channels 40 dB.
Current consumption 20 mA.
The dimensions of the board are 95x170x50 mm.
Weight 150 gr.