This receiver is from a 1924 Gernsback publication. The receiver has good efficiency when powered by the indicated voltages. Listening is through a high-impedance phone.
The circuit shown in the figure is intended for medical applications where the sector in contact...
This circuit was found in an integrated circuit manual from the 1980s. The circuit can be designed...
This 1969 Electronics World power supply has 5 V to power digital circuits and a 170 V output for...