This circuit is indicated for supplying the CB17495E transmitter. The BD135 must have a small heat radiator and the zener may eventually have a higher voltage.
This is another practical idea found in a 1997 documentation. This circuit allows a DJ to change the...
Found in a 90s Popular Electronics, this circuit can power a miniature railroad with voltages of 15...
Based on the frequency of the power grid, this circuit produces square signals for use in digital...