We found this passive circuit in the February 1995 Electronics Now magazine. The circuit is passive, presenting only attenuation that must be compensated by an amplification stage.
This circuit was found in the February 1990 issue of Radio Electronics magazine. The gain is given...
This 90's project shows how to use an old cassette recorder to practice telegraphy. In position A of the...
We found this 4-channel mixer in the August 1999 issue of Electronics Now magazine. The circuit can...