[SEL] Low tension coils

[Steve Royster]

Thanks Elden,  I'll file that info away.  Steve


>From: "Elden DuRand" <edurand at iglou.com>
>Reply-To: The SEL email discussion list <sel at lists.stationary-engine.com>
>To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
>Subject: RE: [SEL] Low tension coils
>Date: Fri, 17 Nov 2006 17:31:37 -0600
>
>Ron & Steve:
>
>I think I didn't give enough information before.  Referring to my 1908 
>Electrical Engineer's Handbook, I have the following data for annealed 
>copper wire:
>
>16 gauge wire - 249.4 ft/Ohm
>18 gauge wire - 156.9 ft/Ohm
>20 gauge wire - 98.66 ft/Ohm
>22 gauge wire - 62.05 ft/Ohm
>
>For a 6 Volt coil to draw 2 Amps, you'd need 3 Ohms or:
>
>16 gauge wire - 750 ft
>18 gauge wire - 471 ft
>20 gauge wire - 297 ft
>22 gauge wire - 189 ft
>
>For a 12 Volt coil to draw 2 Amps, you'd need 6 Ohms or:
>
>16 gauge wire - 1,500 ft
>18 gauge wire -    942 ft
>20 gauge wire -    594 ft
>22 gauge wire -    378 ft
>
>Simple, eh?  Makes me want to go out and wind a few coils!
>
>Other than measuring the length of the wire before starting winding, you 
>could select your wire gauge and make a guess at the size of bobbin you'd 
>need for the requisite amount of wire (adding some just for yucks).  Then, 
>after winding what you -think- is enough, hook one lead of your trusty 
>Ohmmeter to the "starting" end then scrape just a minute amound of 
>insulation off the wire and measure.  From that, you should be able to tell 
>how close you are.
>
>To fix the insulation, you could either fold a tiny sliver of tissue paper 
>around the wire then wind it onto the winding or you could give it a shot 
>of either lacquer or "glyptol" to insulate the spot.
>
>Take care - Elden
>edurand at iglou.com
>http://www.oldengine.org/members/durand
>
> > -----Original Message-----
> > From: sel-bounces at lists.stationary-engine.com
> > [mailto:sel-bounces at lists.stationary-engine.com]On
> >  Behalf Of Steve
> > Royster
> > Sent: Friday, November 17, 2006 12:58 PM
> > To: sel at lists.stationary-engine.com
> > Subject: RE: [SEL] Low tension coils
> >
> >
> > How can you check the proper resistance after
> > winding the coil,  but before
> > you cut the roll of wire you are winding it from?
> >  Thanks, Steve
> >
> >
> > >From: "Elden DuRand" <edurand at iglou.com>
> > >Reply-To: The SEL email discussion list
> > <sel at lists.stationary-engine.com>
> > >To: "The SEL email discussion list"
> > <sel at lists.stationary-engine.com>
> > >Subject: RE: [SEL] Low tension coils
> > >Date: Thu, 16 Nov 2006 18:54:40 -0600
> > >
> > >Ron:
> > >
> > >I think around 18 to 20 gauge would work well.
> > Wind enough wire on the
> > >core to get enough resistance for it to draw a
> > couple of amps at whatever
> > >voltage you plan to run it at.
> > >
> > >Take care - Elden DuRand
> > >edurand at iglou.com
> > >http://www.oldengine.org/members/durand
> > >
> > > > -----Original Message-----
> > > > From: sel-bounces at lists.stationary-engine.com
> > > > [mailto:sel-bounces at lists.stationary-engine.com]On
> > > >  Behalf Of
> > > > rdhaskell at juno.com
> > > > Sent: Thursday, November 16, 2006 04:48 PM
> > > > To: sel at lists.stationary-engine.com
> > > > Subject: [SEL] Low tension coils
> > > >
> > > >
> > > > Hi all.
> > > > I have a chance to pickup copper magnet wire in
> > > > various diameters for
> > > > scrap price, what would be a good size for
> > winding coils?
> > > > Thanks.
> > > >
> > > > Ron Haskell
>
>
>_______________________________________________
>SEL mailing list
>SEL at lists.stationary-engine.com
>http://www.stationary-engine.com/mailman/listinfo/sel

_________________________________________________________________
Get free, personalized commercial-free online radio with MSN Radio powered 
by Pandora http://radio.msn.com/?icid=T002MSN03A07001