LM3600 Ring Modulator (CB25147E)

This circuit is a four-quadrant multiplier using an LM3900. The circuit was found in the July 1988 Radio Electronics magazine.

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Hendset Inductive Pickup Link 2 (CB4527E)
This circuit is a handset receiver that picks up the signal emitted by a coil under the rug or...
Bookstore NCB
Books and e-Books by Institute NCB 100 CIRCUITS - SHIELDS FOR ARDUINO FUN PROJECTS FOR THE...
Logic Drive of the 7805 (CB25236E)
This circuit for the logic control of the 555 in a power supply was found in the October 1989...