I find it VERY difficult and frustrating that the parts for some of the diodes in the AALP2000 kit come together taped and there is no real way to identify which one is which. If I zoom in the each part I read
PH C3V6 on one of the diodes and ON J2 0 307 on the other
Which one is the zener 1N4735 and which one is the small signal diode 1N3064!
I Googled it and there wasnt a clear description of what these labels represent!
Unfortunately markings can vary from manufacturer to manufacturer, and it looks like there was a misprint on the ADALM cover. The wiki page:
did note that the Zener diode could be either 3.6V or 6.2V, but still wasn't 100% clear. Just added some clarification, as well as a simple circuit to identify what's what.
But I'd guess that your diode labeled PH C3V6 is the 3.6V Zener, that's what is in my kit (and verified with the test circuit.)
C3V6 is the code from Zetex for their 3.6 V (a little bit like 4K7 is for 4.7 kilo ohm) Zener diode. The first two letters are probably for the format of the component.