"Patrick Turner" a écrit dans le message de news:


Syl's Old Radioz wrote:

"cornytheclown" a écrit dans le message de news:

I read somewhere on the net......terribly sorry I dont have a
link..... but I read a while back where someone actually obtained a
patent for a semiconductor transistor in the thirties......

You're right. It was Lilienfeld, 1924. Here's a link
with a copy of his 1930 solid state amplifier patent:
http://www.todaysengineer.org/May03/history.asp

The patent including the block diagram of Lilienfeld's radio
would have been a flop, since even if his unknown device worked at all
there would have been silence from the radio, since there is no
diode detector circuit shown.


It's right there, item 26.

Whether you "believed" that it worked or not (there is a comment about
this in the text) doesn't change the fact that "someone named Lilienfeld"
thought and patented a solid-state FET in the mid 20ies, well before 1947.

Syl



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