The circuit presented is a Japanese commercial radio from the 1960s. With a 4.5 V supply, it is a super-heterodyne type with an IF of 455 kHz. 6 germanium transistors are used.
This 5.1 MHz circuit was found in a 1980s documentation. The frequency is given by the crystal and...
To power small projects, we found this circuit in the Radio Electronics magazine of May 1977. The...
May 2017 - Mouser Electronics already has in stock with the new ADP244x switched regulators from...