Product Detector for SSB (CB26010E)

This circuit with the NE602 was found in the February 1997 Electronics Now magazine. The NE602 integrated circuit is not very common these days.

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a Telephone dialer (CB10147E)
This circuit was found in an 80s documentation. The integrated circuit used is from that time,...
Design with Digital Isolators (ART509E)
Texas Instruments has downloadable documentation on designing digital isolators. The Digital...
Frequency Divider With Unijunction Transistors (CB929E)
A low frequency divider can be made using common unijunction transistors as shown by the figure...