This switching circuit for analog signals is from a 90’s Electronic Engineering. The components admit equivalents.
This voltage regulator from STMicroelectronics provides a 1,2 A current in the voltage range from...
Antenova Grandis antennas can be purchased from Mouser Electronics for frequencies from 868 MHz to...
This polarization step for electret microphones was found in an Electronics Now from the 90s. The...