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I designed this circuit many years ago, based on the claims that the technique
would improve the quality of standard TV images. The circuit adds information to
the edges of the objects and was reported to bring out more detail. After building
and testing the circuit, I could definitely see a difference between it and a
regular TV display but I don’t think most people would go to the trouble of
installing the circuit for only a marginal improvement. Still, it is an
interesting circuit with which someone might experiment.
Click on Drawing Below to view PDF version of Schematic
