This circuit from an old documentation includes the power supply for the 117 V power grid. It can be adapted to other networks by changing the 10k resistors.
We found this conventional astable circuit in Ferranti's 1974 transistor manual. Transistors are...
With the circuit shown it is possible to measure very low resistances, of the order of fraction of ohm,...
In the figure we show how to use a common transformer by changing its secondary to obtain a...