This is a commercial circuit from the year 1958. Transistors are germanium types and transformers and coils are hard to fild today. The circuit is destinated to the reception of medium wave stations.
August 2017 - Texas Instruments' new integrated circuit BQ25872, a 7-A keyed battery charger with...
It can be obtained from Mouser Electronics the new LM290xAQ operational amplifiers from Diodes...
This circuit was found in an old Radio Electronics, but can still be assembled as the components are...