3-way control (CB7047E)

This is a simple circuit to control a set of lamps from 3 different points. We found it in an old Popular Electronics.

Instrumentation Amplifier (CB4938E)
This circuit is from an old 80's linear circuit manual. The configuration can be implemented with modern...
Peak detector (CB9689E)
This detector with ultra-low deviation was found in an American documentation from the 90s....
Voltage converter for pulse duration (CB6095E)
This circuit was found in a Signetics documentation from the 1980s. Next to the figure are the...