Electronics is a huge topic full of many technical terms, a lot of which have different names in different languages. I am referring to things like voltage, current (theoretical stuff), etc., components (diodes, resistors, transistors, etc.) and everything else that can possibly be included in this huge topic. Is there a dictionary (preferably online) in Esperanto for everything electronics-related?
Here is an online Eo-Eo dictionary of basic electrical terms (2MB, HTML):
And a sample of short articles:
The website STEB is a good place to look for this sort of thing.
Komputeko.net is more about computer technology than electronics, but of the five specific words you mention, resistor is just plain missing, and though current doesn't appear by itself, there is a translation for alternate current which I assume is supposed to be alternating current. I've found komputeko.net useful for words like inbox, download, et cetera, but transistor, diode, and voltage are all there.
Although not a dictionary, the website http://espleono.uw.hu/elektro.html may be of help for anyone trying to learn about electricity and electronics in Esperanto. The website includes textbooks, example (explained) circuits and even a reference for coloured components, all in Esperanto!
With a bit of googling, I found this cool site that has an online picture list of terms of different types in different languages. They have a section on Electronics. Here's the link: http://www.dicts.info/picture-dictionary.php?group=electronics&language=esperanto