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This is what happens when you don't discharge your caps

Posted: Tue Aug 13, 2013 4:48 pm
by Taronja
Yup, and it HURTS BAD!!! Like a deep burn. At-least I'm alive to share. Heck I'm even felling better than I have in long time, maybe that's what I needed. A nice jolt from head to toe... :|

Image

This was from the innards of an old 2204...

Jon

Re: This is what happens when you don't discharge your caps

Posted: Tue Aug 13, 2013 4:52 pm
by Jondog
You didn't have to do that. Could of just told us rather than almost kill yourself! :mrgreen:

Re: This is what happens when you don't discharge your caps

Posted: Tue Aug 13, 2013 5:24 pm
by Gladmarr
Old Marshalls are terrible for discharging slowly. They're the ones you really need to watch.

Re: This is what happens when you don't discharge your caps

Posted: Tue Aug 13, 2013 6:25 pm
by Jondog
effin marshalls

Re: This is what happens when you don't discharge your caps

Posted: Tue Aug 13, 2013 7:33 pm
by a.hun
Ouch. Well that's one way to feel alive. Self electrocution as legal high?

Glad you are still with us.

On a completely related note... ;)
http://www.thegearpage.net/board/showth ... =discharge" onclick="window.open(this.href);return false;


Andy.

Re: This is what happens when you don't discharge your caps

Posted: Tue Aug 13, 2013 8:41 pm
by Gray
Sort of related. When my neighbor moved, he left me an old full-sized arcade machine because it was too much of a hassle to take with, and I spent the next few years making a project out of restoring it. The caps on the videoboard had dried out and I needed to replace them, but to do that I first had to discharge the flyback transformer which is part of what makes the CRT work. There is a special tool used to discharge the transformer by slipping it underneath the rubber "nipple" that connects it to the glass tube and safely grounding the resulting discharge.

...I didn't have one of those, so I wrapped the bared ends of a lamp cord around the shaft of a long flathead screwdriver. Cue popping and burning plastic.

But hey, that monitor sure looks great now.

Re: This is what happens when you don't discharge your caps

Posted: Tue Aug 13, 2013 9:14 pm
by OrangePaul
Gray wrote:Sort of related. When my neighbor moved, he left me an old full-sized arcade machine because it was too much of a hassle to take with, and I spent the next few years making a project out of restoring it. The caps on the videoboard had dried out and I needed to replace them, but to do that I first had to discharge the flyback transformer which is part of what makes the CRT work. There is a special tool used to discharge the transformer by slipping it underneath the rubber "nipple" that connects it to the glass tube and safely grounding the resulting discharge.

...I didn't have one of those, so I wrapped the bared ends of a lamp cord around the shaft of a long flathead screwdriver. Cue popping and burning plastic.

But hey, that monitor sure looks great now.
Used to work in a TV repair shop... We used two very long screwdrivers lol. I never used to like doing it (mainly the bit of feeding the first screwdriver under the HT cap) but never got a shock from it.

I've had one or two over the years though. Only one off an amp, when I was prodding about with what I thought was an insulated plastic soldering aid tool... turned out it was static dissipative :oops:

Re: This is what happens when you don't discharge your caps

Posted: Tue Aug 13, 2013 9:41 pm
by Jondog
Ill admit I've taken a hit from an amp. Had it dis-charged, turned it on to check something quick (a bulb I think)...forgot to dis-charge again :oops: :shock: it'll give you a good rattle!

Re: This is what happens when you don't discharge your caps

Posted: Tue Aug 13, 2013 9:50 pm
by Randy Bass
I try to discharge my caps at least twice a week.

Re: This is what happens when you don't discharge your caps

Posted: Tue Aug 13, 2013 11:43 pm
by OrangePaul
Randy Bass wrote:I try to discharge my caps at least twice a week.
and make sure your discharge tool is well insulated...

edit... particularly good advice for the touring musician, out on the road :lol:

Re: This is what happens when you don't discharge your caps

Posted: Wed Aug 14, 2013 5:04 pm
by a.hun
Congratulations, LCD achieved in 10 moves!


Andy.

PS: No, not 'liquid crystal display'! :wink:

Re: This is what happens when you don't discharge your caps

Posted: Wed Aug 14, 2013 7:35 pm
by ironlung40
On a related note X2

http://www.youtube.com/watch?v=1lozkT1zrIU" onclick="window.open(this.href);return false;