[TheForge] Two electrical questions

[Grover Richardson]

Higher Voltage on a filamentary light bulb will cause it to glow brightly,
but will cause it to burn out quickly.  If you look at the light bulbs that
are sold as long lasting, most are listed as 130 Vac bulbs, and are run at
115 Vac (nominal) or so.  The lower Voltage makes them glow less brightly,
but last longer<G>.

As you are increasing the Voltage about 25% or so, it won't last long.

Now motors are somewhat less caring about the Voltage.  However, if you lock
the rotor, it is possible to demagnetize the motor due to excessive current
draw.  I would suggest (with the lack of other information) that this is
unlikely with your hand tool, but this is a guess based upon some experience
in these areas.

Yes, for the drill, nothing ventured nothing gained.  For the light, when it
burns out, get the right Voltage bulb and put it in.

>*>-----Original Message-----
>*>From: theforge-bounces at mailman.qth.net 
>*>[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Barking Crow
>*>Sent: Thursday, April 13, 2006 4:01 PM
>*>To: Sponsored by ABANA
>*>Subject: [TheForge] Two electrical questions
>*>
>*>
>*>Several months ago I found a complete craftsman professional 18volt 
>*>drill/driver in a trashpile in its case but with a frozen 
>*>chuck that despite 
>*>lots of work I could never fix and finally failed cutting it 
>*>apart to get to 
>*>where I could replace it.  Then yesterday in a trashpile I 
>*>found a craftsman 
>*>14.4 volt drill/driver, battery, charger, and neat 
>*>flashlight.  The battery 
>*>is so weak that it will just barely make the filament glow.  
>*>The 18volt 
>*>batteries are strong and will spin the chopped up chuck 
>*>strongly and hold 
>*>their charges well.  So today with some creative belt sander 
>*>and chisel work 
>*>I got the 18volt batteres to fit onto the 14.4 volt 
>*>flashlight which has a 
>*>very nice adjustable head and the light is bright.  Is there 
>*>a problem using 
>*>the more powerful battery?  What should the filament care 
>*>about 3.6 volts? 
>*>AND, should I try similarly modifying the drill base to fit 
>*>the 18 volt 
>*>battery?  How will the motor feel about the extra 3.6?  
>*>Nothing ventured 
>*>financially.  I feel certain the craftsman boys will tell me 
>*>not to do it, 
>*>but what do you guys think?  Thanks,
>*>
>*>Jeff in already hot Tallahassee 
>*>
>*>
>*>
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