RE: TI-H: NS Illuminator

To: "'ti-hardware@lists.ticalc.org'" <ti-hardware@lists.ticalc.org>
Subject: RE: TI-H: NS Illuminator
From: Jan Zumwalt <zumwalt@alaska.net>
Date: Thu, 9 Oct 1997 01:23:46 -0800
Reply-To: ti-hardware@lists.ticalc.org

             E
Ohms law, R= -     R-resistance in ohms, E = volts, and I = current
             I


On Wednesday, October 08, 1997 5:37 PM, NDStein@aol.com [SMTP:NDStein@aol.com] 
wrote:
> I know a resistor is better and more efficient.  However, this is as far as
> I've gone so far.  I don't know how to calculate the resistance I need, as I
> thought you need to know amperage to calculate the resistance you should
> have.  I don't know the amperage of 2 AA batteries, and I assumed it varied.
>  Maybe you can explain this to me in #ticalc some day.  Also, I thought
> silicon diodes (normal ones, not the rectifier diodes, etc.) always gave a .6
> v drop.  This is what I read in the radio shack electronics book ;-).  In
> this case, what kind of drop would you expect, and why would I burn something
> out?  However, I was planning on substituting a resistor when I found out
> what to use.
>
>                                                  -Noah

Prev: TI-H: Hardware Ring
Next: TI-H: Backlighting
Index(es):
- Main
- Thread