This 9 V battery eliminator was found in Radio Electronics magazine from June 1966. The transistor is of medium power and must be equipped with a small heat sink.
This converter for the 150 MHz band was found in an American documentation. Transistors are...
The sensor diode used in this circuit is the common type of germanium. Experiments may be made...
The SN72741 integrated circuit is nothing more than the version of Texas Instruments of the known...