Electrohome G07 Filter Cap WARNING

FrizzleFried

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I know that many of you have heard of the warning that the Electrohome G07 filter cap can maintain a charge and give you a nice little bite.

I found out this weekend that the bite it could give you could potentially be a bite more than nice and little. HOLY CRAP! I was pulling a G07 chassis that I knew had a blown small fuse when it slipped and the filter cap shorted to the chassis... ***>>> S N A P <<<*** and damn was the flash bright (bright enough to actually illuminate the brown dirty ass G07 PCB. It was easily as loud as a standard issue fire cracker.

I can only imagine what that kind of voltage would feel like going in to a finger or hand...

While I respected it before, I now at least have an idea of the kind of voltage potential that filter cap has. Prior to this the biggest spark i'd seen was from the anode hole to a discharging tool at about 1/2" or so... with a sound about 1/4 as loud as this snap.

Just SO glad it wasn't a finger...
 
I've taken it all my friend... g07 filter stings, anode cap attached to my leg with it turned on, and absolute worst, one hand on a g07 hot case and the other on the g07 regulator. Never work when your over tired in the early AM. Working on multiple monitors daily since 2004 it was bound to happen especially in the early years.
 
I still have the scar on my hand from grabbing the flyback on my SI deluxe when I was trying to adjust it through the coin door. After being thrown back and having a bloody hand from smashing it on the coin door frame I learned to look where I put my hands.
 
I know that many of you have heard of the warning that the Electrohome G07 filter cap can maintain a charge and give you a nice little bite.

I found out this weekend that the bite it could give you could potentially be a bite more than nice and little. HOLY CRAP! I was pulling a G07 chassis that I knew had a blown small fuse when it slipped and the filter cap shorted to the chassis... ***>>> S N A P <<<*** and damn was the flash bright (bright enough to actually illuminate the brown dirty ass G07 PCB. It was easily as loud as a standard issue fire cracker.

I can only imagine what that kind of voltage would feel like going in to a finger or hand...

While I respected it before, I now at least have an idea of the kind of voltage potential that filter cap has. Prior to this the biggest spark i'd seen was from the anode hole to a discharging tool at about 1/2" or so... with a sound about 1/4 as loud as this snap.

Just SO glad it wasn't a finger...



I always discharge monitors and have never seen or heard a pop or spark....but every G07 I've done has had that happen at the filter cap. And like you said...its loud and shoots sparks out. Its scary =)
 
Where is the filter cap?

go7lyot.gif
 
I know that many of you have heard of the warning that the Electrohome G07 filter cap can maintain a charge and give you a nice little bite.

I found out this weekend that the bite it could give you could potentially be a bite more than nice and little. HOLY CRAP! I was pulling a G07 chassis that I knew had a blown small fuse when it slipped and the filter cap shorted to the chassis... ***>>> S N A P <<<*** and damn was the flash bright (bright enough to actually illuminate the brown dirty ass G07 PCB. It was easily as loud as a standard issue fire cracker.

I can only imagine what that kind of voltage would feel like going in to a finger or hand...

While I respected it before, I now at least have an idea of the kind of voltage potential that filter cap has. Prior to this the biggest spark i'd seen was from the anode hole to a discharging tool at about 1/2" or so... with a sound about 1/4 as loud as this snap.

Just SO glad it wasn't a finger...

Man, I just warned you about that cap in your other thread about the twins.

http://forums.klov.com/showpost.php?p=873316&postcount=14

I even said I would use the HV probe to discharge that thing next time. It puts out quite a pop when you discharge it via a short. Maybe next time you will heed my warning. ;)

Thanks for the laugh anyway...
 
Man, I just warned you about that cap in your other thread about the twins.

http://forums.klov.com/showpost.php?p=873316&postcount=14

I even said I would use the HV probe to discharge that thing next time. It puts out quite a pop when you discharge it via a short. Maybe next time you will heed my warning. ;)

Thanks for the laugh anyway...


I'd PLANNED on discharging with my HV probe... but I didn't get the chassis out before it slipped and shorted itself out.
 
I'd PLANNED on discharging with my HV probe... but I didn't get the chassis out before it slipped and shorted itself out.

I figured as much and that is why I laughed. :) Even when your expecting it that thing is like a fire cracker! Someone here took that shock to their lap of all places.
 
Been there done that bought the T-shirt! :p It sounds much like a 22 pistol going off a foot from your face.

I know that many of you have heard of the warning that the Electrohome G07 filter cap can maintain a charge and give you a nice little bite.

I found out this weekend that the bite it could give you could potentially be a bite more than nice and little. HOLY CRAP! I was pulling a G07 chassis that I knew had a blown small fuse when it slipped and the filter cap shorted to the chassis... ***>>> S N A P <<<*** and damn was the flash bright (bright enough to actually illuminate the brown dirty ass G07 PCB. It was easily as loud as a standard issue fire cracker.

I can only imagine what that kind of voltage would feel like going in to a finger or hand...

While I respected it before, I now at least have an idea of the kind of voltage potential that filter cap has. Prior to this the biggest spark i'd seen was from the anode hole to a discharging tool at about 1/2" or so... with a sound about 1/4 as loud as this snap.

Just SO glad it wasn't a finger...
 
Yeah, whenever I get a dead G07, I always discharge that first. Even when you know what's coming, you still jump a mile when it happens. There's enough voltage there that it take a small chunk out of my discharger tip - almost as if it was arc-welding...
 
I made a couple of jumpers with megaohm resistors spliced in-between the gator clips.. works wonderful for a calm discharge on g07 caps & such. I wouldn't use to discharge the crt anode though as the voltage rating on the resistors are low. save the anode for the big gun hv probe.
 
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I figured as much and that is why I laughed. :) Even when your expecting it that thing is like a fire cracker! Someone here took that shock to their lap of all places.

I have taken that shock many times. It never ceases to piss me off! :mad:
Hopefully I remember to discharge it the next time I have a g07 with the blown flyback. I usually remember about half the time the other half I get the bajebus shocked out of me and the cussing starts! :rolleyes:
 
I know that many of you have heard of the warning that the Electrohome G07 filter cap can maintain a charge and give you a nice little bite.

Yep... if the little fuse is blown, there's no route for that cap to discharge (normally the FBT will take care of it), so you've got 600u @ ~150V there to bite you... much worse than the tiny effective capacitance of the CRT anode, even though that's at a *much* higher voltage.
 
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