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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Car Timed Alarm (CB16368E)
This circuit was obtained in a 1982 publication. There are many types of car alarms available to...
5-Level Voltage Monitor (CB16533E)
This circuit was found in a 1998 documentation. It makes use of 741 or other operational...
Flip Flop RS LM3900 (CB5052E)
In the figure we give the set-reset flip-flop configuration in which two Norton amplifiers are used in...