On Fri, Aug 23, 2013 at 10:39 AM, Sunil Shah <[email protected]> wrote:
>
> And when I had a go at it, it was one of the projects you could build with a 
> "few components on a piece of cardboard"-kits.
>
> It consisted of a coil w ferrite core, trimcap, headphones and a 
> _Germanium_Diode_ (the magical ingredient ; )

I remember those kits!  They had spring loaded standoffs for
connecting components and wires assembled on the box they came.

Weren't they provided by AT&T or Bell Labs?

Reply via email to