Precision Low Frequency 555 Oscillator (CB8088E)

Found in Electronics now, this circuit generates signals given by the formulas next to the diagram.

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6 W amplifier (CB9055E)
Using transistors at the time, this circuit was found in a 1970s documentation. Transistors support...
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Found in an Electronic Design from the 90s, this circuit generates a mathematical function given by the...
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We found this circuit in a Poptronics from 1998. The circuit can be extended to more competitors...