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#484101 07/17/06 05:20 AM
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I am an environmental consultant. I have a client with an old, probably defunct telephone panel board with numerous 1A2 400D KTU cards.

My issue is that a green colored liquid is leaking (very slowly) from the cards and we have been unable to identify its source or the exact make-up of the liquid.

Any help or insight would be greatly appreciated.

Ideally an MSDS of the source liquid would be optimal, but at this point I'll take any info I can get.

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#484102 07/17/06 08:58 AM
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From all the cards? I can't think of any liquid of any kind in these cards. Are you sure it's not just moisture and corrosion? Copper, moisture and presence of battery cause a green looking gunk.


Retired phone dude
#484103 07/17/06 09:14 AM
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we are looking into that and not coming up with a moisture source. that may be the way to go, potentially analyzing a bulk sample for Cu to see if it is the primary constituent, aside from water.

I also have a photo. Let me see if I can attach it.

#484104 07/17/06 09:59 AM
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not seeing a quick way to attach. am I missing a shortcut? I have a pick with the liquid visible.

#484105 07/17/06 10:15 AM
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I'm not good with the picture thing. I know you have to have a host and link it but that's about all I know. I sure someone will help out in a bit if not I'll see if I can get someone to help ya.

Is it coming from a particular part of the card? those things are nothing but relays, resisters, diodes, and capacitors that's about it, might be a transistor or two.


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#484106 07/17/06 10:18 AM
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That is probably it, but I have no familiarity with the equipment.

If you have an email address, I could send the pic direct. One photo in .jpg format.

The email tab above your postings is set to private.

No big deal, completely up to you.

#484107 07/17/06 10:21 AM
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Let's give it a bit to see if you get some help on the picture. I'd like it posted for all to see, could help someone else in the future.
Bill


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#484108 07/17/06 10:24 AM
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thank you

#484109 07/17/06 10:26 AM
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env guy
If you want to send the pic to me or link address I'll get it posted for you. For the liquid it could be a leaky capacitor if there is a large electrolytic on the board it would most likily be the power supply filter cap.


Merritt

Business Telephones & Equipment + Commercial Audio/Video Products
Commercial Communications . . . Turner, Maine
If it was built after 1980 don't expect it to work right.
#484110 07/17/06 11:11 AM
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Merritt,
The 400 series KTUs are all dry caps, there is nothing I can think of that would contain a liquid unless there has been a liquid / high humidity issue (leaky roof, wet mop, broken water pipe, you know the drill). Green would normally mean corrosion due to induced moisture and battery.

Green Jello? I prefer lime. wink

Is this KSU in a high heat or corrosive area?
Basically the board is no different than any computer board of that vintage and the components are generically the same.

Good luck --- let us know what you see, jb.

KLD


Ken
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