Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!torsqnt!tmsoft!masnet!canremote!greg.trice
From: greg.trice@canremote.uucp (GREG TRICE)
Newsgroups: sci.electronics
Subject: TUBE DESIGN
Message-ID: <13b593cad136270a1244@canremote.uucp>
Date: 3 Oct 90 14:31:00 GMT
Organization: Canada Remote Systems Limited, Mississauga, ON, Canada
Lines: 9

Does anybody know any computer programs (preferably Unix based) that
would assist in the design of vacuum tubes, e.g. tell you what shapes
and spacings are required for the electrodes to achieve a particular
characteristic? Also any recommendations for a good book on tube design?

I'm also interested to know whether there are any good SPICE models
available for vacuum tubes that really take into account the various
non-linearities and account for things like the kink in the Va/Ia curve
of some tetrodes at low anode voltages.