This DC-DC converter was found in old RCA documentation. The circuit operates at 15 kHz. The characteristics of the transformers were not indicated.
Found in an American documentation from 1968, this circuit uses transistors from the time. The...
This circuit is based on an LM123 and can supply output currents up to 3A. IB is typically 3.5A...
This experimental radio was obtained in an old Argentine publication. Germanium transistors are...