Early models displayed vacuum tube curves; later ones were of course aimed at measuring transistors, diodes, and other solid-state devices. Plug-ins for Tek 5000- & 7000-series scopes ... most easily ...

Figure 1 shows the addition of a diode in series with the Zener diode. The curve in Figure 1 plots the temperature coefficient for various Zener voltages. Above values of 4.7V, the temperature ...

Instead of these exotic current limiting diodes, he could have used a current source or current sink consisting of an PNP or NPN transistor respectively, a (zener) diodes, and 2 resistors.

Oh, and finally, note that some Zener/Avalanche diodes will exhibit negative resistance, at some narrow portion of their operating curve (One researcher has indicated that between 75 and 80 ...

Series troubleshooting: Bypass diodes fail regularly, ... Measurements of I-V curves or similar tests on each string or module are too costly at this stage.