This simple power supply, which is equivalent to 2 AAA or AA batteries, was found in an Elektor from the 90's. The transformer has a 4.5 V secondary with a current of 50 mA or more.
With this converter it is possible to tune the signals of the 15 MHz WWV.in AM receiver. WWV is...
This timebase was found in a European 1980s documentation. The circuit uses well-known components...
This circuit is from the 1977 RCA Linear Integrated Circuits Manual. The circuit has a...