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Author Topic:   odd behavior of microlight
setnahkt
Member
posted 12-30-2007 10:14 PM     Click Here to See the Profile for setnahkt     Edit/Delete Message   Reply w/Quote
I have one of these, and the *#&^% thing keeps turning on in my pants pocket. The switch requires a firm press to turn it on, but the thing goes on in my pocket with the slightest jostle. I first thought it was bouncing up against my keys (it's a keyring light, after all) but it does the same thing off the key ring. I've tried twisting it, shaking it, thumping it, and everything else outside my pocket, and it won't go on unless I press the switch - but in the pocket it not only goes on, it goes on in the "bright steady" mode, that drains the batteries quickly. I am mystified. Suggestions (other than throwing the thing away) would be appreciated.

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LaneH
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posted 12-30-2007 10:22 PM     Click Here to See the Profile for LaneH     Edit/Delete Message   Reply w/Quote
Beat it hard against a solid surface?

Beyond that, not a clue.

------------------
lane h. can be reached at laneman@erols.com
"Never let your mind remain so open that your brain falls out."

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WattKid
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posted 12-30-2007 11:45 PM     Click Here to See the Profile for WattKid     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by setnahkt:
I have one of these, and the *#&^% thing keeps turning on in my pants pocket. The switch requires a firm press to turn it on, but the thing goes on in my pocket with the slightest jostle. I first thought it was bouncing up against my keys (it's a keyring light, after all) but it does the same thing off the key ring. I've tried twisting it, shaking it, thumping it, and everything else outside my pocket, and it won't go on unless I press the switch - but in the pocket it not only goes on, it goes on in the "bright steady" mode, that drains the batteries quickly. I am mystified. Suggestions (other than throwing the thing away) would be appreciated.

I used to set off my car security alarm by squatting down or crossing my legs while sitting inside my house. I could establish a clear cause and effect because I could hear when it happened. The keys on my key ring, my pocket knife, nail clippers, or comb would press the panic button on the little radio sender.

1. Carry the light in a pocket by itself.
2. Glue an o-ring around the on-off button to provide a little extra shielding.
3. Get roomier pants.
4. Carry the light on a lanyard around your neck.
5. Get a fanny pack.

Or the penultimate solution: They make dandy shirt pocket lights nowadays. It would be a great accessory for your plastic pocket protector -- a fashion statement to affirm your geekiness.

The ultimate solution: if you're totally comfortable displaying your geekiness
http://www.finksbaitandtackle.com/servlet/the-199/5,-LED,-Cap,-Light,illumination,fishing,tackle,clothing,hat/Detail

I have a 5-LED model that I got from the cheap-Chinese-import bin at the hardware store. ($5.95) I use mine frequently, and yes, my wife does laugh at me. It works great. It's much more convenient than holding a Maglite in your mouth.

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setnahkt
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posted 12-31-2007 12:43 AM     Click Here to See the Profile for setnahkt     Edit/Delete Message   Reply w/Quote
Answered my own question (with a little help from the web) - static. Apparently the electronics that do the multiple modes - high beam, low beam, flash, off - are so static sensitive that just putting the thing in your pocket generates enough static to set it off. I bet it was developed and tested in a humid climate. The solution is, of course, simple - I'll just wear clothes made out of aluminum foil.

(Actually, could someone more electronically sophisticated suggest something simpler? I rather like the little thing and if I could fix this just by (for example) wrapping a little fine-gauge copper wire around it, I would be happy. Do you think that would work?)

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WattKid
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posted 12-31-2007 08:31 AM     Click Here to See the Profile for WattKid     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by setnahkt:
Answered my own question (with a little help from the web) - static. Apparently the electronics that do the multiple modes - high beam, low beam, flash, off - are so static sensitive that just putting the thing in your pocket generates enough static to set it off. I bet it was developed and tested in a humid climate. The solution is, of course, simple - I'll just wear clothes made out of aluminum foil.

(Actually, could someone more electronically sophisticated suggest something simpler? I rather like the little thing and if I could fix this just by (for example) wrapping a little fine-gauge copper wire around it, I would be happy. Do you think that would work?)


It looks like you are goig to have to choose between your flashlight and your mink underwear.

If you can dismantle it sufficiently, you might be able to provide Faraday shielding for the integrated circuit with something like a gum wrapper -- shiney side out, of course.

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Eboy
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posted 12-31-2007 08:50 AM     Click Here to See the Profile for Eboy     Edit/Delete Message   Reply w/Quote
Electronic ICs such as for PC memory upgrades are often packaged in anti-static foam/plastic envelopes. You could find one a little bigger than your light and keep the light inside while in your pocket.

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dlittlew
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posted 12-31-2007 10:34 AM     Click Here to See the Profile for dlittlew     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by WattKid
It's much more convenient than holding a Maglite in your mouth.

I resemble that remark!

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WattKid
Member
posted 12-31-2007 11:21 AM     Click Here to See the Profile for WattKid     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by dlittlew:
I resemble that remark!

You'd think that if Maglite were to do a little market research, they'd start selling a soft plastic mouthpiece to slip on the tail end of the flashlight.

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SPQR
Moderator
posted 12-31-2007 11:40 AM     Click Here to See the Profile for SPQR     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by WattKid:
You'd think that if Maglite were to do a little market research, they'd start selling a soft plastic mouthpiece to slip on the tail end of the flashlight.

All they have to do is check the shelves, there is a company that does sell such an accessory to fit the Mini-Maglite.

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WattKid
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posted 12-31-2007 01:21 PM     Click Here to See the Profile for WattKid     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by SPQR:
All they have to do is check the shelves, there is a company that does sell such an accessory to fit the Mini-Maglite.

I've never seen it around here.

I know lots of guys who hold their Maglite in their teeth. I used to until I got the light to clip on my cap. Nite IZE needs to do a better job of marketing.
http://www.nextag.com/Nite-Ize-Lite-Bite-509387363/prices-html

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setnahkt
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posted 12-31-2007 01:25 PM     Click Here to See the Profile for setnahkt     Edit/Delete Message   Reply w/Quote
Via email (I admit I was surprised to have an answer this morning to an email snet last night) the company has admitted the problem, says it's fixed, and offered me a "free" replacement if I send them the old one. I suppose I'll go that way.

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SPQR
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posted 12-31-2007 01:52 PM     Click Here to See the Profile for SPQR     Edit/Delete Message   Reply w/Quote
I can't recall the manufacturer, Wattkid, but the local Sportsmanswarehouse ( aka "My Second Home" according to the wife ), carries them if my memory serves.

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Frank2941
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posted 12-31-2007 04:24 PM     Click Here to See the Profile for Frank2941     Edit/Delete Message   Reply w/Quote
All this is interesting.

But, for the rest of us, "What is a microlight?"

[This message has been edited by Frank2941 (edited 12-31-2007).]

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WattKid
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posted 12-31-2007 05:18 PM     Click Here to See the Profile for WattKid     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Frank2941:
All this is interesting.

[b]But, for the rest of us, "What is a microlight?"

[This message has been edited by Frank2941 (edited 12-31-2007).][/B]


Follow the link in Set's original post.

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dlittlew
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posted 12-31-2007 06:48 PM     Click Here to See the Profile for dlittlew     Edit/Delete Message   Reply w/Quote
To highjack the topic slightly, I've always liked Maglites because of the manufacturing quality. I used to like the larger models because not only did they provide a good source of light most reliably but they also made a perfectly legal weapon. I may have learned that from a policeman but not because he hit me with his.

Any any rate, a few months ago I sprung for a conversion kit for one of the smaller, pocket size models that substituted an LED for the original bulb. It provides a much brighter light and, after months, I've yet to replace the 2 AA batteries.

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Frank2941
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posted 12-31-2007 10:29 PM     Click Here to See the Profile for Frank2941     Edit/Delete Message   Reply w/Quote
WattKid

I saw all of that.

It said it was durable, it would withstand serious punishment, would have ultra-high performance in a small package, it is indispensable, etc.

Now, if you, or anyone else, would tell me what it really is, and how it is different from any other flashlight, I would appreciate it.

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LaneH
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posted 01-01-2008 08:02 AM     Click Here to See the Profile for LaneH     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Frank2941:
Now, if you, or anyone else, would tell me what it really is, and how it is different from any other flashlight, I would appreciate it.

It's LED

LEDs have surpassed incandescent in so many ways. They use very little power. They are clean on the spectral layer. And can be really small. And small and bright.

Look to you local mass-transit, they're going down that line, I'm guessing.

Set, are you going LED? The DC metro is in the conversion process and it is very nice.


------------------
lane h. can be reached at laneman@erols.com
"Never let your mind remain so open that your brain falls out."

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Frank2941
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posted 01-01-2008 10:45 AM     Click Here to See the Profile for Frank2941     Edit/Delete Message   Reply w/Quote
I went to their website and they never said anything about LED's.

Apparently, the sellers think that their potential buyers are too stupid to understand about LED's.

I have some LED night lights. They are great and I presumably will not have to keep replacing them like with those "Christmas tree type bulbs" as I have had to do with previous night lights.

I do have an LED flashlight, but it was very poor quality and nearly worthless-but I still like LED's.

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setnahkt
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posted 01-01-2008 12:26 PM     Click Here to See the Profile for setnahkt     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by LaneH:
...Set, are you going LED? The DC metro is in the conversion process and it is very nice....[/B]

Not that I know of; decision would be made at a higher level. It would save recycling costs for fluorescents, though. Perhaps I'll suggest it; thanks.

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setnahkt
Member
posted 01-22-2008 09:43 AM     Click Here to See the Profile for setnahkt     Edit/Delete Message   Reply w/Quote
Well, after a email complaint the company sent me a new "improved" one. Unfortunately it seems to do the same thing as the old one; spontaneously turn on in my pocket, presumably due to static affecting the switch. It's too bad; it would be handly little gadget except for this fatal flaw. I could only recommend it to people who don't wear pants. And I'm glad it's a flashlight, and not a flamethrower.

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jessho
Member
posted 01-23-2008 11:03 AM     Click Here to See the Profile for jessho     Edit/Delete Message   Reply w/Quote
My suggestion is a braided ground strap attached to your shoe. I'ts an easy fix and it might make a fashion statement. In fact, you could mass produce these critters and recommend their use when talking on cell phones while fueling your automobile. My mind boggles at the money that could be made from this device. One flier to a safety consulting firm and you're in the money.

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setnahkt
Member
posted 01-23-2008 07:10 PM     Click Here to See the Profile for setnahkt     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by jessho:
My suggestion is a braided ground strap attached to your shoe. ....

Wouldn't I have to have multiple straps cross connected to to all my clothing? Wait, I've got; make it all out of a conductive material. Like aluminum foil, or that silver impregated stuff, or carbon. If I did my shoes that way, I could have bragging rights to a small carbon footprint.

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SPQR
Moderator
posted 01-23-2008 08:17 PM     Click Here to See the Profile for SPQR     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by setnahkt:
Wouldn't I have to have multiple straps cross connected to to all my clothing? Wait, I've got; make it all out of a conductive material. Like aluminum foil, or that silver impregated stuff, or carbon. If I did my shoes that way, I could have bragging rights to a small carbon footprint.

You'll blend right in, Set.

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KGB
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posted 01-23-2008 09:51 PM     Click Here to See the Profile for KGB     Edit/Delete Message   Reply w/Quote
I spent an entire observing run at Mauna Kea with an astronomer who was obligated to wrap herself in leftover Christmas tree tinsel as makeshift static protection for the control computer.

I got altitude sick, too.

Gratuitous link

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