Low noise mixer (CB7984E)

This mixer was found in Silicon Chip documentation from the 90's. The circuit uses integrated circuits from that time.

Fish lure (CB21074E)
This circuit was found in an old American publication. The transformer is the type of output found...
Low current source (CB21990E)
This current source circuit with the CA3130 was found in a 1977 publication. The circuit provides...
Beacon for cars (CB18146E)
The project presented consists of a flasher alternated with relay, which can be installed at the...