Using 4 tubes, this 1924 receiver combines new technologies as an intermediate frequency stage that was already beginning to appear. Listening is via phone and battery power.
This circuit can convert an AC voltage signal into a current up to 1 A for powering a load. The...
This circuit was found in a Popular Electronics from the 90's. The operating curve is given next...
April 2017 - The new Maxim Integrated MAX20733 and 20745 switched regulators are available from...