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LOW_COST_STEREO_PHONOGRAPH

2017-01-03 22:26  
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LOW_COST_STEREO_PHONOGRAPH
Uses single Sprague ULN-2277 IC containing two audio amplifiers each capable of driving loudspeaker directly, for input from high-impedance stereo cartridge Connections are identical for other channel,Power output per channel is 2 W. Tone and volume controls ale ganged, with those for other channel, but balance control shown serves both channels.-E. M. Noll, Linear IC Principles, Experiments, and Projects, Howard W. Sams, Indianapolis, IN, 1974, p 237-239.