Timeline for AC line indicator circuit - resistor gets fried
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| Jul 14, 2023 at 14:50 | comment | added | Mark Morgan Lloyd | neons definitely have their uses, even today. However you might be amused that I remember a transistor-based computer that used neons for the register displays etc.: despite requiring around 100V they were more reliable than incandescent bulbs, and LEDs hadn't yet been invented. | |
| Jul 14, 2023 at 14:47 | comment | added | Noel | and I forgot to add. The footprint on a PCB of this solution is way bigger than just the neon bulb + resistor. Especially that bulky capacitor. | |
| Jul 14, 2023 at 8:33 | comment | added | Noel | My conclusion. Using a LED to indicate power ON from mains is a bad idea. These are the reasons. * Complex circuit prone to weakness. * Could be unsafe if failing while power to application is still ON. * Potential hidden issues (like fast power switching frying something). * Too many components * Hard to source components. (pulse proof resistors) * Potentially expensive components. * All of these making the final product hard to manufacture. My solution. Using a neon bulb with a resistor. * Simple. 2 components. * Cheap. * Easy to diagnose. * No hidden issues. | |
| Jul 13, 2023 at 21:31 | history | became hot network question | |||
| Jul 13, 2023 at 19:03 | history | edited | winny | CC BY-SA 4.0 |
added 3 characters in body
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| Jul 13, 2023 at 16:22 | answer | added | Kuba hasn't forgotten Monica | timeline score: 2 | |
| Jul 13, 2023 at 15:13 | answer | added | Simon B | timeline score: 6 | |
| Jul 13, 2023 at 13:53 | answer | added | GodJihyo | timeline score: 5 | |
| S Jul 13, 2023 at 13:30 | review | First questions | |||
| Jul 13, 2023 at 15:19 | |||||
| S Jul 13, 2023 at 13:30 | history | asked | Noel | CC BY-SA 4.0 |