Here the tool is an incandescent 40 to 100 watt bulb, works on picture tubes too.
Glow provides the level indication.
Glow provides the level indication.
YES! And inspired by youtube videos of Mr Carlson, Blue Glow and D-lab really.
I always discharge the caps even if there is a bleeder, it’s a safety practice. I need to have reflexes like that because I’m clumsy in general.
Ok maybe I’ll post a video why not 😉
I always discharge the caps even if there is a bleeder, it’s a safety practice. I need to have reflexes like that because I’m clumsy in general.
Ok maybe I’ll post a video why not 😉
i use a 100 watt incandescent lamp to discharge caps, nothing fancy, just the lamp with two pigtails...
if you are happy with that, i am happy for you...
if you are happy with that, i am happy for you...
Build Your Own Capacitor Discharge Probe | Electronics Repair And Technology News
This is what I use, assembled and stuffed in a plastic turkey baster, LED's and ground lead in end cap, old soldering tip as probe.
Works perfectly and you can see when its discharged
This is what I use, assembled and stuffed in a plastic turkey baster, LED's and ground lead in end cap, old soldering tip as probe.
Works perfectly and you can see when its discharged
There will be a time that joking like this will offend people I am afraid. Anyway, you are right to work safely whatever anyone else thinks about it.
Nicely done. The meter is a very useful addition.
FWIW, I don't like using wire-wound resistors for this application. It's better to use a big carbon-comp resistor (or a "carborundum" resistor). They're less likely to go open.
I never trust bleeder resistors. You always want to add them in your designs, but trusting the system to discharge itself is foolish at best.
Even with a discharge tool, I like to verify with a multimeter, just to play it safe. With lower voltage caps it's less of an issue, but with caps charged to 800V, take no chances.
The time is now. I watch BBC daily and I already feel offended 😛
But we need another useful tool for low voltage, high capacitance caps as 3k is gonna take hours to discharge 100mF @100v. And screwdrivers don't last very long. Waiting for a group buy with bated breath.
Hi. I did use 3 1K wirewound resistors in series, but they are 10W each. The meter is in parallel with the resistors so if one of them goes open, you will see the voltage accross the cap not moving.
All of this might feel like an overkill (you obviously don't need big resistors for a very transient current) but it will lower the risk of one part failing on you and leaving your cap dangerously charged. A single bare resistor handled by hand or an incandescent light may both fail without notice and you may have no way of knowing it before it's too late.