Re: Hobbyist Semiconductor devices

"N. Thornton" wrote:
> 
> [EMAIL PROTECTED] (Andre) wrote in message news:<[EMAIL PROTECTED]>...
> > "Tim Boescke" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>...
> 
> > > > Supposedly, you can make a primitive GaN based LED now, just by doping
> > > > it with magnesium (to make the hard-to-find P type GaN) .
> <snip>
> 
> > Could it have been done in the 1900's ?
> > :)
> 
> I believe LEDs date back to the early years of the century, I dont
> know exactly when, no refs etc, but ITUCTIRC some early diode
> detectors were known to emit light with the right electrical prodding.
> 
> Regards, NT

  The good 'ole 1N34 is a great white light emitter....use about 50V
across it in the forward direction.......