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| How do I make a leaky capacitor ? |
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| Hextejas:
I made a project from Mr. Carson's Patreon site and it tests for leaky capacitors. Well, it seems that all the capacitors that i have are new, hence they don't leak. In an effort to try and make a leaky capacitor, I tried reversing the polarity of an electrolytic and puttjng 30v DC on it. I dont recommend doing that. The sucker blew up sounded like a .38 revolver. Luckily I had it covered with a rag. Anyhow, what would happen if I punched a hole in the side of a capacitor ? And I seem to remember that a leaky capacitor exhibits a resistance, so maybe I could use a resistor instead. What say you ? Thanks. |
| CJay:
You could certainly put a resistor in parallel but if you want the real deal you could also work a capacitor in high temperatures, apply voltage to one the correct polarity, heat it up and repeatedly discharge it. No idea how long it'd take to become leaky though |
| Doctorandus_P:
You could try using an electrolytic in reverse, but with a series resistor (100 kOhm or so). The reversed DC voltage wil slowly eat away the oxide layer but without spectacular effects because the energy and heating is very limited. Or limit the reverse voltage to a few volts. Or just measure the Elco backwards. Then it will probably start leaking fast. |
| Cliff Matthews:
Today shows Carlson resorted to his old Heathkit IT-11 (so maybe that nifty new leakage tester didn't show the whole story..) |
| BergRD:
Watched that video today! Like his content and the aging electronics. One thing that comes to mind is from yet another video I watched from ElectroBoom!. I'm not sure if you've heard of him and likely some here would roll their eyes at his content/videos but he's an electronics guy/engineer and using comedy and self-harm (shocks, etc) he has built quite a following as of late. I followed him initially on LiveLeak where he started but quickly jumped to Youtube and now he only works on videos. That being said, he just had a video about him making his own capacitor (Leyden Jar) which might be leaky enough to test? Simple enough to build but unsure if it helps. |
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