[rescue] Dual head Octane SI + ESI

[Dave McGuire]

On Monday, September 29, 2003, at 11:48 AM, Phil Stracchino wrote:
> The trouble with cold cathode is RF noise inside the case, and EL
> wire/foil suffers an exponential loss of brightness over its usable
> life.  LEDs are definitely the best solution for this application.

   Yes.

> Yup, good bright blue LEDs have only been available for about two 
> years,
> and white LEDs are even newer.  White LEDs actually use a phosphor
> coating excited by the actual emissions of the LED to produce white
> light, iirc.  It could in principle also be done by placing three
> junctions (R/G/B) close together in a single package, along with
> balancing resistors to tune the RGB color balance, but the phosphor is 
> a
> simpler solution; to my knowledge no-one's proposed doing the
> three-junctions-in-one-package trick commercially.

   Kingbright makes them.  I have a few here.  No resistors, 
though...they use to blues to make up for the luminosity difference.  
These are neat...standard T1-3/4 size LEDs that have SIX LEADS coming 
out of the bottom. :)

        -Dave

--
Dave McGuire                      "My tummy hurts now, but my soul
St. Petersburg, FL                 feels a little better."     -Ed