Wire Finder (CB21301E)

Found in an Electronic Hobbyist Handbook from the 1990s, this circuit is intended to apply a signal to a cable to enable its location.

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1MHz XTAL 4001 Oscillator (CB11868E)
This circuit has its frequency controlled by a 1MHz crystal. The circuit can be powered by...
Neural Comparator (CB4831E)
This circuit, found in a 2000 documentation, is used in simple artificial intelligence and robotic...
Video switch (CB21318E)
Found in National Semiconductor documentation from the 1990s, this circuit switches video signals to...