AD to PC Converter (CB7455E)

Found in a Popular Electronics from the 90's, this circuit makes use of an integrated from the uncommon era today. The circuit serves as a reference.

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Active Filter (CB5109E)
This active crossover filter was obtained from the component manual used. Below is the performance...
Complementary Power Switch (CB5299E)
This circuit is from an 80's documentation. It makes use of two SCRs with current capacity...
Automatic Plant Watering Can (CB16246E)
This interesting idea was found in a 1983 publication and is very simple to analyze, according to the...