From: Mike Ford <mikeford_at_socal.rr.com>
>>I'm old, dirts older. When I was in school you were really cool of
your
>>radio
>>had six transistors, cooler if it had FM and rich if your portable tape
>
>Are you sure you weren't trying to impress people with the catwhisker on
>your crystal set? ;)
I still have a few feet of very thin phosphorBronze wire from that! Nice
springy material.
The first one used a commercial diode but otherwise traditional. Later
on
I tried a long list of other rectifing materials:
Galena,
Carborundum
Super-Blue blade and pencil
CupricOxide
selenium (from a rectifier)
Silver oxides and sulphides
Rusty nails
I'd read about these in various books as a kid.
Allison
Received on Wed Mar 28 2001 - 18:31:02 BST
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: Fri Oct 10 2014 - 23:34:05 BST