Re: [Cameramakers] enlarger lenses

[J. Wayde Allen]

On Thu, 24 May 2001, Gene Johnson wrote:

> Yup that should have been 100W not 100A.

Thought so, you'd need some pretty heavy cabling and probably a direct
connection to the utility company to power a bulb at 100 amps.  After all,
12 volts at 100 amps would dissipate 1,200 watts, and that is into a bulb
resistance of 12/100 = 0.12 ohms!  The loss in the wiring to supply this
kind of current would be very problematic.

- Wayde
  ([EMAIL PROTECTED])

_______________________________________________
Cameramakers mailing list
[EMAIL PROTECTED]
http://rmp.opusis.com/mailman/listinfo/cameramakers