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| Hobby Forum Index » Pyrotechnics » Nichrome for E-Matches... |
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| Sammy... |
 Posted: Thu Oct 15, 2009 5:16 am |
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Guest
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I have a lot of 1960's '70's era flash bulbs, but they are a truly finite
supply. Christmas bulbs work well too. I want to make my own PCB board type
"chip" style e-matches.
"ghelf" <ghelf at (no spam) sbcglobalDeathToSpam.net> wrote in message
news:0f2dnfgWIf800UjXnZ2dnUVZ_tWdnZ2d at (no spam) giganews.com...
Quote: Could the old type magnesium flash bulbs be used for your purpose?
Some modification might be necessary but you could probably go even
smaller than an AA battery.
It might be difficult to find a source for these bulbs though.
"Sammy" <sales at (no spam) pvconly.com> wrote in message
news:4ad40359$0$48224$815e3792 at (no spam) news.qwest.net...
What gauge of nichrome wire should I use for low voltage (easily fired by
a AA battery) e-matches and where can I get it?
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| Sammy... |
| Posted: Thu Oct 15, 2009 5:19 am |
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I have to admit, you can't beat the price. Dollar General sells them for
$1.00 a box. Much better than $800.00/lb
"TONY S" <kclo42112 at (no spam) gmail.com> wrote in message
news:a024c165-15b9-4bc4-a846-79956f98784d at (no spam) t2g2000yqn.googlegroups.com...
On Oct 13, 11:59 pm, "ghelf" <gh... at (no spam) sbcglobalDeathToSpam.net> wrote:
Quote: Could the old type magnesium flash bulbs be used for your purpose?
Some modification might be necessary but you could probably go even
smaller
than an AA battery.
It might be difficult to find a source for these bulbs though.
"Sammy" <sa... at (no spam) pvconly.com> wrote in message
news:4ad40359$0$48224$815e3792 at (no spam) news.qwest.net...
What gauge of nichrome wire should I use for low voltage (easily fired
by
a AA battery) e-matches and where can I get it?- Hide quoted text -
- Show quoted text -
yes the old Mg flash bulbs are great for that purpose,but I now use
old christmas light bulbs,they bow reliably on 1.5 volts and you can
even use dollar store button batteries for those toy laser
pointers,use two or three and the ignition is foolproof,well as good
as it gets, I still have a two year old spool of nichrome sitting on
my shelf growing dust,once I discovered christmas bulbs,I never had a
use for it again.And Who doesn't have a couple bad strands of those?
unless you dont know anyone that celebrates Christmas!! just use a
small three sided file to notch the tip ,snap it off and dip away,
then once dry check for continuity ,I figure the one strand I have
will last quite a while and cost me Zero censts ,and thats a scratch
as it gets Sam |
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| Sammy... |
| Posted: Thu Oct 15, 2009 5:20 am |
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Guest
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I guess I will start making a batch!
"TONY S" <kclo42112 at (no spam) gmail.com> wrote in message
news:4f3fb3fd-8d95-49f7-b04e-de1c9ad9d158 at (no spam) s31g2000yqs.googlegroups.com...
On Oct 14, 11:05 pm, TONY S <kclo42... at (no spam) gmail.com> wrote:
Quote: On Oct 13, 11:59 pm, "ghelf" <gh... at (no spam) sbcglobalDeathToSpam.net> wrote:
Could the old type magnesium flash bulbs be used for your purpose?
Some modification might be necessary but you could probably go even
smaller
than an AA battery.
It might be difficult to find a source for these bulbs though.
"Sammy" <sa... at (no spam) pvconly.com> wrote in message
news:4ad40359$0$48224$815e3792 at (no spam) news.qwest.net...
What gauge of nichrome wire should I use for low voltage (easily fired
by
a AA battery) e-matches and where can I get it?- Hide quoted text -
- Show quoted text -
yes the old Mg flash bulbs are great for that purpose,but I now use
old christmas light bulbs,they bow reliably on 1.5 volts and you can
even use dollar store button batteries for those toy laser
pointers,use two or three and the ignition is foolproof,well as good
as it gets, I still have a two year old spool of nichrome sitting on
my shelf growing dust,once I discovered christmas bulbs,I never had a
use for it again.And Who doesn't have a couple bad strands of those?
unless you dont know anyone that celebrates Christmas!! just use a
small three sided file to notch the tip ,snap it off and dip away,
then once dry check for continuity ,I figure the one strand I have
will last quite a while and cost me Zero censts ,and thats a scratch
as it gets Sam
"as scratch as you can get" Sam,sorry it was late and my fingers
weren't hitting the keys |
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| TONY S... |
| Posted: Fri Oct 16, 2009 12:29 am |
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Guest
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On Oct 15, 7:20 am, "Sammy" <sa... at (no spam) pvconly.com> wrote:
Quote: I guess I will start making a batch!
"TONY S" <kclo42... at (no spam) gmail.com> wrote in message
news:4f3fb3fd-8d95-49f7-b04e-de1c9ad9d158 at (no spam) s31g2000yqs.googlegroups.com...
On Oct 14, 11:05 pm, TONY S <kclo42... at (no spam) gmail.com> wrote:
On Oct 13, 11:59 pm, "ghelf" <gh... at (no spam) sbcglobalDeathToSpam.net> wrote:
Could the old type magnesium flash bulbs be used for your purpose?
Some modification might be necessary but you could probably go even
smaller
than an AA battery.
It might be difficult to find a source for these bulbs though.
"Sammy" <sa... at (no spam) pvconly.com> wrote in message
news:4ad40359$0$48224$815e3792 at (no spam) news.qwest.net...
What gauge of nichrome wire should I use for low voltage (easily fired
by
a AA battery) e-matches and where can I get it?- Hide quoted text -
- Show quoted text -
yes the old Mg flash bulbs are great for that purpose,but I now use
old christmas light bulbs,they bow reliably on 1.5 volts and you can
even use dollar store button batteries for those toy laser
pointers,use two or three and the ignition is foolproof,well as good
as it gets, I still have a two year old spool of nichrome sitting on
my shelf growing dust,once I discovered christmas bulbs,I never had a
use for it again.And Who doesn't have a couple bad strands of those?
unless you dont know anyone that celebrates Christmas!! just use a
small three sided file to notch the tip ,snap it off and dip away,
then once dry check for continuity ,I figure the one strand I have
will last quite a while and cost me Zero censts ,and thats a scratch
as it gets Sam
"as scratch as you can get" Sam,sorry it was late and my fingers
weren't hitting the keys- Hide quoted text -
- Show quoted text -
let me know what you think,,I also find easier to attach my leads
first then dip ,I then wrap the end of my lead around a pencil and
hang upside down to dry over a sheet of paper |
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| hhc314 at (no spam) yahoo.com... |
| Posted: Mon Oct 19, 2009 12:00 pm |
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Guest
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On Oct 16, 3:29 am, TONY S <kclo42... at (no spam) gmail.com> wrote:
Quote: On Oct 15, 7:20 am, "Sammy" <sa... at (no spam) pvconly.com> wrote:
I guess I will start making a batch!
"TONY S" <kclo42... at (no spam) gmail.com> wrote in message
news:4f3fb3fd-8d95-49f7-b04e-de1c9ad9d158 at (no spam) s31g2000yqs.googlegroups.com....
On Oct 14, 11:05 pm, TONY S <kclo42... at (no spam) gmail.com> wrote:
On Oct 13, 11:59 pm, "ghelf" <gh... at (no spam) sbcglobalDeathToSpam.net> wrote:
Could the old type magnesium flash bulbs be used for your purpose?
Some modification might be necessary but you could probably go even
smaller
than an AA battery.
It might be difficult to find a source for these bulbs though.
"Sammy" <sa... at (no spam) pvconly.com> wrote in message
news:4ad40359$0$48224$815e3792 at (no spam) news.qwest.net...
What gauge of nichrome wire should I use for low voltage (easily fired
by
a AA battery) e-matches and where can I get it?- Hide quoted text -
- Show quoted text -
yes the old Mg flash bulbs are great for that purpose,but I now use
old christmas light bulbs,they bow reliably on 1.5 volts and you can
even use dollar store button batteries for those toy laser
pointers,use two or three and the ignition is foolproof,well as good
as it gets, I still have a two year old spool of nichrome sitting on
my shelf growing dust,once I discovered christmas bulbs,I never had a
use for it again.And Who doesn't have a couple bad strands of those?
unless you dont know anyone that celebrates Christmas!! just use a
small three sided file to notch the tip ,snap it off and dip away,
then once dry check for continuity ,I figure the one strand I have
will last quite a while and cost me Zero censts ,and thats a scratch
as it gets Sam
"as scratch as you can get" Sam,sorry it was late and my fingers
weren't hitting the keys- Hide quoted text -
- Show quoted text -
let me know what you think,,I also find easier to attach my leads
first then dip ,I then wrap the end of my lead around a pencil and
hang upside down to dry over a sheet of paper- Hide quoted text -
- Show quoted text -
This is a silly thread, really silly.
Who in the wide world would try to fire any e-match using an AA
batery?
I really don't believe that the OP was a terrorist, maybe just a kid,
but you guys responding to this post really got suckered in on this
one.
Harry C. |
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| Don T... |
| Posted: Mon Oct 19, 2009 4:06 pm |
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Guest
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Didn't read the thread did you. If you had read it you would have seen
this:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Once per channel on an altimeter, single flight. Batteries will be changed
between flights. This is for deployment charges in high power rocketry.
"Tom Biasi" <tombiasi at (no spam) optonline.net> wrote in message
news:4ad45581$0$31273$607ed4bc at (no spam) cv.net...
Quote:
"Sammy" <sales at (no spam) pvconly.com> wrote in message
news:4ad40359$0$48224$815e3792 at (no spam) news.qwest.net...
What gauge of nichrome wire should I use for low voltage (easily fired by
a AA battery) e-matches and where can I get it?
How many times are you expecting to fire them from an AA battery?
Tom
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Silly? Nah.
--
Don Thompson
Stolen from Dan: "Just thinking, besides, I watched 2 dogs mating once,
and that makes me an expert. "
There is nothing more frightening than active ignorance.
~Goethe
It is a worthy thing to fight for one's freedom;
it is another sight finer to fight for another man's.
~Mark Twain
<hhc314 at (no spam) yahoo.com> wrote in message
news:73a1f19d-6983-41b1-86eb-6e6f3178ddef at (no spam) u13g2000vbb.googlegroups.com...
This is a silly thread, really silly.
Who in the wide world would try to fire any e-match using an AA
batery?
I really don't believe that the OP was a terrorist, maybe just a kid,
but you guys responding to this post really got suckered in on this
one.
Harry C. |
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| Lloyd E. Sponenburgh... |
| Posted: Mon Oct 19, 2009 5:19 pm |
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Guest
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"Don T" <-painter- at (no spam) louvre.org> fired this volley in
news:ZuydnR4gxpZqf0HXnZ2dnUVZ_rydnZ2d at (no spam) earthlink.com:
Quote: Didn't read the thread did you. If you had read it you would have seen
this:
He never does.
Besides, if a single (pyrotechnic) ematch won't fire on 1.5V, it's
defective.
LLoyd |
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| Don T... |
| Posted: Mon Oct 19, 2009 6:43 pm |
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"Lloyd E. Sponenburgh" <lloydspinsidemindspring.com> wrote in message
news:Xns9CA9C4A11D020lloydspmindspringcom at (no spam) 216.168.3.70...
Quote: "Don T" <-painter- at (no spam) louvre.org> fired this volley in
news:ZuydnR4gxpZqf0HXnZ2dnUVZ_rydnZ2d at (no spam) earthlink.com:
Didn't read the thread did you. If you had read it you would have seen
this:
He never does.
Besides, if a single (pyrotechnic) ematch won't fire on 1.5V, it's
defective.
LLoyd
I used to have a lot of respect for Harry but after many times posting a
page, paragraph, and sentence reference from one or another of my reference
books to him in response to his saying that so and so didn't cover such and
such I started losing much of the built up good will I felt for him. Right
now I kind of feel sorry for him because I feel that his age related
infirmities are starting to pile up and are diminishing his faculties. It is
sad to watch the decline but it is also very offensive reading the
grandiosity Harry has started to display.
Back in the days when I was regularly firing shots in metal mines it was
nothing unusual to fire a single electric #6 cap with only an Alkaline AA
cell as the EMF source to fire off a "mudcap" and break up a slab of rock
scaled from the "back" of a drift.
Mine speak. Belly, Ribs, Back, and Face. The Belly is the floor, the Ribs
are the sides and the Back is the roof of a horizontal shaft (drift)
underground, the working end where the holes are drilled and the charges are
placed is called the Face.
--
Don Thompson
Stolen from Dan: "Just thinking, besides, I watched 2 dogs mating once,
and that makes me an expert. "
There is nothing more frightening than active ignorance.
~Goethe
It is a worthy thing to fight for one's freedom;
it is another sight finer to fight for another man's.
~Mark Twain |
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| Lloyd E. Sponenburgh... |
| Posted: Mon Oct 19, 2009 7:13 pm |
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Guest
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"Don T" <-painter- at (no spam) louvre.org> fired this volley in
news:7cadnWkLU6k_mkDXnZ2dnUVZ_jmdnZ2d at (no spam) earthlink.com:
Quote: Mine speak. Belly, Ribs, Back, and Face. The Belly is the floor, the
Ribs are the sides and the Back is the roof of a horizontal shaft
(drift) underground, the working end where the holes are drilled and
the charges are placed is called the Face.
Yeah... you'll have to talk to my wife, Linda. She's the blaster, I'm
the pyro <G>.
(I get it through osmosis, though)
LLoyd |
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| Paul... |
| Posted: Thu Oct 22, 2009 8:00 am |
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Guest
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On Oct 12, 11:34 pm, "Sammy" <sa... at (no spam) pvconly.com> wrote:
Quote: What gauge of nichrome wire should I use for low voltage (easily fired by a
AA battery) e-matches and where can I get it?
48 gauge will work also. For small qty orders see http://www.pnjresources.com/Nichrome.html
paul |
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| Sammy... |
| Posted: Tue Nov 03, 2009 6:52 am |
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Thank you Paul. This produced results!
"Paul" <paul at (no spam) pnjresources.com> wrote in message
news:c4d8639b-6d7b-474c-9b72-2b155493404c at (no spam) l34g2000vba.googlegroups.com...
On Oct 12, 11:34 pm, "Sammy" <sa... at (no spam) pvconly.com> wrote:
Quote: What gauge of nichrome wire should I use for low voltage (easily fired by
a
AA battery) e-matches and where can I get it?
48 gauge will work also. For small qty orders see
http://www.pnjresources.com/Nichrome.html
paul |
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