We found this circuit in the Audio Handbook of the National Semiconductor of 1977. The circuit is used to recover vinyl media for recording on other media.
Found in a 1960 Sylvania manual, this circuit can be implemented with a modern equivalent...
This configuration, already presented in other points of this section and website, is of a...
We found this precise crystal oscillator for the 144 MHz band, depending on the crystal used. The...