This high sensitivity receiver of 30 nW was found in documentation from the 1980s. Integrated circuits are from that time.
This RF monitor or field strength meter can use instruments from 100 uA to 1 mA full scale. The...
This is one of the many integrated integrator circuits that the reader can find on the website. The...
This lead-acid battery charger was found in a Popular Electronics from the 90s. The circuit has a...