Light for a gun safe

[Jim Yanik]

Chris W <1qazse4@cox.net> wrote in news:FVS6e.306$yO2.110@lakeread07:

Daniel Haude wrote:

On Mon, 11 Apr 2005 20:48:21 -0500,
Chris W <1qazse4@cox.net> wrote
in Msg. <%NF6e.288$yO2.27@lakeread07



I just did some checking and it looks like digikey has the parts I
need and I was going to just use a Digikey PN 33206CA-ND to connect
the SOT-23-6 package to a generic prototype board. I'm guessing from
what you are saying it won't work very well that way, am I missing
something?



Maybe I'm off-topic because this is an *electronics* newsgroup, but
what's wrong with a normally-closed microswitch mounted such that it
is depressed when the door is closed? You can glue the switch to one
of those crazy magnets out of a harddrive and stick that into the safe
behind the door -- a non-invasive and adjustable solution.

--Daniel


I guess I wasn't clear. I want the dimming feature because when it is
dark and your eyes are adjusted to the dark you don't need as bright
of a light to see with, and don't want a blinding light when you open
the door. I am still planing on using a door switch of some kind to
turn the thing completely off when the door is shut.

The LT1932 can dim with a photoresistor,perhaps.

See the Linear Technology website.

--
Jim Yanik
jyanik
at
kua.net

 

[Keith Williams]

In article <pan.2005.04.12.22.12.13.140928@example.com>,
wacko@example.com says...

On Mon, 11 Apr 2005 20:21:23 +0000, Michael Black wrote:

Yes, I'd just put a good flashlight inside, maybe even putting a bit of
rope on it (or chain if you want to get fancy) to attach it to the
inside so it will be harder for the flashlight to go missing.

"Go Missing?" How many people have access to this "safe?" If people are
breaking into OPs safe and stealing stuff, an automagical lamp isn't
going to have much effect.

Dunno, I have lots of things that only I use that seem to go missing

regularly. See the recent discussion of sox and writing implements.

--
Keith

 

[Mark Jones]

Rich The Newsgropup Wacko wrote:

------
There was a young gaucho named Bruno
Who said, "There is one thing I do know,
Women are fine
And children devine,
But the llama is numero uno."

(Shaking head...)

 

[Mark Jones]

Michael Black wrote:

Keith Williams (krw@att.bizzzz) writes:

In article <pan.2005.04.12.22.12.13.140928@example.com>,
wacko@example.com says...

On Mon, 11 Apr 2005 20:21:23 +0000, Michael Black wrote:


Yes, I'd just put a good flashlight inside, maybe even putting a bit of
rope on it (or chain if you want to get fancy) to attach it to the
inside so it will be harder for the flashlight to go missing.

"Go Missing?" How many people have access to this "safe?" If people are
breaking into OPs safe and stealing stuff, an automagical lamp isn't
going to have much effect.


Dunno, I have lots of things that only I use that seem to go missing
regularly. See the recent discussion of sox and writing implements.


That's what I was implying. The original poster wanted some permanent
installation. Keeping the flashlight tied to the safe makes it permanent.
It makes it even a bit harder to take the flashlight somewhere else
where it might be forgotten, and not in the safe when it's needed.

Michael

What if the batteries leak corrosive chemicals onto your expensive guns?

 

[Jim Yanik]

Mark Jones <abuse@127.0.0.1> wrote in
news:r7udnV_QFL4xtcDfRVn-vw@buckeye-express.com:

What if the batteries leak corrosive chemicals onto your expensive
guns?

They would have to leak out of the flashlight first. I doubt alkalines
would leak that much.

Another clue would be a inoperative flashlight.

--
Jim Yanik
jyanik
at
kua.net

 

[Rich Grise]

On Wed, 13 Apr 2005 20:23:49 +0000, Jim Yanik wrote:

Mark Jones <abuse@127.0.0.1> wrote in
news:r7udnV_QFL4xtcDfRVn-vw@buckeye-express.com:



What if the batteries leak corrosive chemicals onto your expensive
guns?


They would have to leak out of the flashlight first. I doubt alkalines
would leak that much.

Another clue would be a inoperative flashlight.

If he intends to leave the flashlight unattended for months or years,
and use the cheapest "heavy duty" batteries he can get, he could put
it in a ziploc bag. ;-)

Cheers!
Rich

 

[Keith Williams]

In article <d3i99t$7r$1@theodyn.ncf.ca>, et472@FreeNet.Carleton.CA
says...

Keith Williams (krw@att.bizzzz) writes:
In article <pan.2005.04.12.22.12.13.140928@example.com>,
wacko@example.com says...
On Mon, 11 Apr 2005 20:21:23 +0000, Michael Black wrote:

Yes, I'd just put a good flashlight inside, maybe even putting a bit of
rope on it (or chain if you want to get fancy) to attach it to the
inside so it will be harder for the flashlight to go missing.

"Go Missing?" How many people have access to this "safe?" If people are
breaking into OPs safe and stealing stuff, an automagical lamp isn't
going to have much effect.

Dunno, I have lots of things that only I use that seem to go missing
regularly. See the recent discussion of sox and writing implements.

That's what I was implying. The original poster wanted some permanent
installation. Keeping the flashlight tied to the safe makes it permanent.
It makes it even a bit harder to take the flashlight somewhere else
where it might be forgotten, and not in the safe when it's needed.

Sure, but it seems that Rich the <fill in the blank> didn't get it.

--
Keith

 

[Paul Hovnanian P.E.]

Mark Jones wrote:

Rich The Newsgropup Wacko wrote:
------
There was a young gaucho named Bruno
Who said, "There is one thing I do know,
Women are fine
And children devine,
But the llama is numero uno."


(Shaking head...)

A limerick packs laughs anatomical
Into space that is quite economical.
But the good ones I've seen
So seldom are clean,
And the clean ones so seldom are comical.

--
Paul Hovnanian mailtoaul@Hovnanian.com
------------------------------------------------------------------
Fast wine, old women, loose cars.

 

[Chris W]

John Fields wrote:

On Mon, 11 Apr 2005 15:15:15 -0500, Chris W <1qazse4@cox.net> wrote:



John Fields wrote:





---
Well, in that case I suggest that you use a 7555 with one section
running as a fixed astable and the second section running like a
one-shot triggered off of the first one. Use an LDR as the second
one's timing resistor in order to vary its output pulse width, and get
your dimming function by driving your LED's in parallel through a
2N4403 driven by the Q output of the one-shot

Use a form "B" reed switch and a magnet to connect power to the
beastie and it only runs (draws _no_ quiescent current) when the door
is open.

Want a schematic?





Sure but I wold also like to know why you are suggesting this over the
chip I found.



---
Your way might be the way to go, but it seems like too much of a
hassle for me.

Inductor, special caps, Schottky, 1.2MHz, ground plane, PCB layout...

Plus you've gotta order all the stuff, probably from different places,
so in the end you'll have spent so much on it you'd _have_ to keep it
locked up in a safe!



I just did some checking and it looks like digikey has the parts I need

and I was going to just use a Digikey PN 33206CA-ND to connect the
SOT-23-6 package to a generic prototype board. I'm guessing from what
you are saying it won't work very well that way, am I missing something?

--
Chris W

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