Direction Signal (CB25608E)

This circuit was found in the September 1993 Electronics Now magazine. It is based on the 555 and powers an audible indicator.

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Wien Bridge Oscillator MC1776 (CB4498E)
The integrated circuit used in this project is not common today, but it can be implemented with more...
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This circuit is from an ancient American documentation. The T-Bridge circuit determines the...
Logarithmic Polarization Source (CB6594E)
This circuit delivers at its output a voltage that proportional to the amplitude of the input...