Negative Feedback Stage (CB6131E)

This circuit is from a 1967 US publication. The configuration can serve as a basis for designs with modern components.

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Neural Comparator (CB4831E)
This circuit, found in a 2000 documentation, is used in simple artificial intelligence and robotic...
Radar detector (CB8664E)
This more sophisticated version compared to the previous one in this section was also found in 90s...
Sinusoidal oscillator 741 (CB25404E)
The frequency depends on C, which must have the indicated value ratio, and also on R, which can be...