Alpha and Theta waves modulator (CB26155E)

This circuit, which presents a certain danger and should be used with caution, was found in the Electronics Experimenter Handbook magazine.

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Segment decoder (CB6601E)
This circuit was obtained from a 1966 General Electric documentation. It can serve as a basis for...
DC Regulated DC Converter (CB6099E)
This circuit was found in Siliconix documentation from the 1980s. Equivalent operational...
Low hysteresis comparator (CB6085E)
Obtained from a 1980s Linear Technology documentation, this circuit has a hysteresis of less than...