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This audio filter was found in the August 1993 issue of Radio Electronics magazine. It cuts low and high frequencies corresponding to rumble and scratch noises that occur on turntables.
These circuits from a May 1994 Electronics Now take advantage of the noise from the junctions of...
This circuit allows the use of two triggers (inverters or NAND ports connected in this way) to...
The integrated circuits used in this 1999 project are quite rare today, which makes its practical...