This QST circuit generates 4 frequency signals according to the crystals used. Transistors admit equivalents although the indicated types can still be found with some ease.
This power supply is not protected from shorts in the output. Output voltage is given by the...
In the figure we have the simple way to obtain a digital inverter using a general-purpose...
In the figure we have a high stability voltage reference, providing a voltage of 10 V at the...