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 charging current of this circuit is controlled by the temperature of the accumulators, which is...
We found this circuit in a 1987 magazine, but the use of still common components allows its...
This circuit was originally designed to power the CB18698's MSX interface, but it is suitable for...