3-decade logarithmic AD (CB9024E)

This circuit was found in a 70s American documentation. The converter can be of any type and the power supply for the operators must be symmetrical.

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Linear photometer (CB20721E)
Found in American documentation from the 1970s, this circuit employs an integrated circuit from...
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This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
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