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.
We found this circuit in an old publication on oscilloscopes. Its purpose is to observe the Ie /...
A fine adjustment of the output voltage of a power source is achieved with this circuit, which...
The assembly of this circuit was written in an article in Radio Electronics magazine from January...