12 Oct
2007
12 Oct
'07
10:20 p.m.
Bryan Pope wrote:
Speaking of the quartz crystal, when did the first
one(s)
(approximately) come out?
As the earth slowly cooled ... :)
I suspect around the 1890's materials like quartz where first
studied but but the triode many properites of materials
where left to be discovered.
Cheers,
Bryan