I have two rants behind these electronic component 'conventions'.
First are resistors and their stripe coding. The bain of my existence. You get one mixed pile of resistors and you are gonna waste your time looking for the one you want especially if you have to de-code the stripes or individually measure the reading. Isnt it more logical to print the numbers of their resistance on them instead of some coded stripe (like they do for say capacitors). Even if you are a seasoned veteran in resistor stripe reading, its still a pain. And you are likely to forget the coding convention if you dont read resistors on a daily basis also. Its unnatural for new and even moderately seasoned folks who have to refer to the chart. Otherwise, for those just picking and reading off the resistance off a multimeter, its downright a PITA.
Its just so unnatural. Why dont they make the convention of printing the number on the resistors or at least have the numerical value along with the stripes? So what is the genius reasoning behind the stripe coding convention?
Second are electrolytic caps. LEDs have one longer arm than the other. Makes sense; its polar and its hard to tell which one is which so make one length longer. OK. Schottky diodes also have polarity, but they mark the polarity on the packaging while the lead length remains the same on both ends. Makes sense. Now, electrolytic caps. These have both marks to tell you the polarity, as well as having one lead longer than the other. Why? Is it not overkill? What is the genius behind this convention?
Please enlighten me.