FW: incand lamps debate [wasRe: [LINK] Here's one that will snaga few]

[Adam Todd]

At 02:10 PM 23/02/2007, Eleanor Lister wrote:
> >> The most basic and comreghensive example of all time, is the CRYSTAL
> >> RADIO!
> >
> > Ahh, happy childhood memories.  My first radio was a BTH [1] crystal
> > set in a beaut wooden case with *two* galena crystals and cats
> > whiskers just in case one went "off".  I remember my father modding it
> > by replacing one of the crystals with some gizmo that was war surplus
> > from radars, called a *diode*, encapsulated in a glass tube.  :)
> >
> > [1] British Thompson-Houston
> >
>i learned to make crystal radios with the following ingredients:
>
>- a piece of wire tied to a water pipe
>- the carbon rod out of a torch battery
>- a razor blade
>- a cheap earpiece
>- another piece of wire sticky taped to my bedroom wall

You will have to explain that one to me!  There are two critical components 
missing from where I sit!