Preamplifier for color music. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Color and music installations, garlands
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Scheme of the CMU preamplifier.
The signal can be fed directly to the amplifier input from the line output of any sound reproducing device. Resistor R1 adjusts the input signal level.
The amplifier is assembled on a K548UN1A chip (only one half of the chip is used, which has two ULF channels). Resistor R5 is designed to correct the feedback of the amplifier.
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