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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100 mA Symmetric Regulator 78L and 79Lxx (CB15338E)
This 15 V regulator uses the integrated 100 mA L series. The circuit was suggested by Motorola's Linear...
S-imeter (CB4205E)
S-meter is a signal strength meter used in radio transmission. Also known as Strength meter, in this...
Electronic Fuse (CB25411E)
This circuit was found in the December 1991 issue of Radio Electronics magazine. The circuit is...