This simple timer with unijunction transistor was found in an old American technical documentation. We can use 2N2646 for the unijunction and BC548 for the transistor.
This transmitter outputs signals to the analog TV range operating with composite video signals for analog...
This circuit, with output currents up to 500 mA, can stabilize or regulate the output voltage of a...
The critical point in this project is the adjustment of the optical system, mainly to avoid...