[R-390] Grid History

Perry Sandeen sandeenpa at yahoo.com
Sat Feb 1 23:09:09 EST 2014


List,
 
I have recreated an article named A History of the
Grid by Patrick Mitchell from Electronics World August 2000.
 
It covers valves from their beginning as diodes up
the the creation of the pentode.  It
includes both diagrams and response curves. Eight pages PDF.
 
If you want a copy, PLEASE contact me with a new
email request instead of reply to so Yahoo Wahoo doesn’t combine my email and I
can make sure you get your copy.
 
Regards,
 
Perrier   


More information about the R-390 mailing list