This small source for low consumption projects was found in an old national documentation. The transistor is for general use and the transformer has 50 to 100 mA of secondary current.
This circuit was found in an ancient American documentation. The integrated circuit is of the time...
Found in an older Radio Craft, this circuit covers the aerial band from 118 to 136 MHz. No...
This amplifier was found in a Radio Electronics of the 90s. The circuit uses unusual operational...