<VV> Bulbs burn out quickly?

[Frank DuVal]

Oh give me a break. Yes, tungsten filaments are near zero resistance 
when cold, so the inrush current is high. But the voltage is always a 
nominal 12 volts, so the inrush current is always the same when you turn 
the bulb on. How is miswiring on a Corvair going to get more voltage to 
the bulb? Tie it to the ignition coil? Even then the bulb will not fail 
because the low initial resistance of the bulb will limit the high 
voltage output of the coil.

So I repeat, how can you get more inrush current through the bulb? You 
can tie the bulb directly to the battery and the inrush will be in spec 
with how it was manufactured. Inrush still follows Ohm's law  I=E/R.

Frank DuVal


Matt Nall wrote:

>Frank, I explained the problem...INRUSH..... the filament cannot handle 
>it....... 45 years of many experiences with this problem..MAY NOT be 
>THE PROBLEM this time....but COULD BE
>
>
>
>Matt Nall
>Webspace: http://members.aol.com/patiomatt
>
>
>-----Original Message-----
>From: Frank DuVal <corvairduval at cox.net>
>No, Ron is right. The current through a bulb is determined by the
>available volatge and the resistance of the bulb. E=IR, I=E/R ohm's 
>law.
>The only way to get more current through the bulb is to apply more
>voltage. Even if you put the bulb in series with the starter motor, the
>current through the bulb would not exceed its normal current. Of course
>the starter motor would not run, since now its current is limited.
>
>Frank DuVal
>
>  
>