Circuit Dynamics: Design-Oriented Analysis, Dennis L. Feucht, Innovatia (www.innovatia.com), first printing: OCT 2016, 86 pages, 6 × 9 inch, glossy softcover, $25 US. This short book is a systematic, ...
The improved one-BJT current-limiting supply is not much different than the primitive circuit, though its one additional resistor does change the circuit behavior. The improved circuit is shown below.