Can be used as a shield, this old American documentation circuit offers digitally selected attenuation values from 1 to 0.0001. The component used is uncommon today.
We found this 4-channel mixer in the August 1999 issue of Electronics Now magazine. The circuit can...
This circuit is indicated for measurement bridges as a null detector, thanks to the logarithmic gain...
This circuit with TTL output was found in a 1968 EEE. The transistor can be of general use. The...