RGB to NTSC Converter (CB9415E)

This circuit was found in Radio Electronics from the 90s. The integrated circuit used is not common today. The circuit is crystal controlled.

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Touch Switch (CB10924E)
This circuit was obtained in a 1991 Electronics Handbook. The publication no longer exists, but...
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This circuit provides an output voltage with the absolute value of the charge and discharge current...
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With the figure circuit it is possible to control the amount of heat generated by the heating...