HP 32SII success and woes

[Katie Wasserman]

(02-24-2015 01:29 AM)Sanjeev Visvanatha Wrote:  I am pretty sure the capacitor is the correct one. However, I am not so sure of the silicon diode (see its forward voltage, for instance). Would anyone care to weigh in with a recommendation for a silicon diode with a 0.6V forward voltage, suitable for this application?

EDIT - I am not experienced in selecting this sort of thing, so bear with me!

Thank you!

Pretty much any silicon diode will do just fine, since they all have about a 0.6v forward voltage drop and any one will easily handle the few mA of current. A 1N4148 is a good choice. I doubt that the capacitor is causing the problem you have.