In the figure we have an interesting protection bridge against power polarity inversion of a circuit using power MOSFETs. MOSFETs must have currents according to the protected load.
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...