Why are there two diodes in series in this test circuit? - Electrical Engineering Stack Exchange
Solved: Figure 2.41 Shows Two Diodes With Reverse Saturati... | Chegg.com
Series circuit with two diodes. | Download Scientific Diagram
Zener Diode as Voltage Regulator Tutorial
What happens when two diodes are connected in a series? - Quora
Figure7.111 Typical circuits for use of varactor tuning diodes: (a) single diode in circuit low side, (b) single diode in circuit high side, (c) two diodes in series back-to-back arrangement. (From [