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Schematic CAD

132.185.240.122
Posted on July 28, 2009 at 05:19:57
WALLACE
Audiophile

Posts: 24
Location: London, UK
Joined: July 31, 2008
 I'm fed up drawing circuits on the back of envelopes etc.

Any recomendations to a quick and easy to use freebie download to draw nice schematics on a PC ?

Oh - and it has to include valves !

WALLACE

RE: Schematic CAD, posted on July 28, 2009 at 12:48:48
Slick
Audiophile

Posts: 308
Location: Maryland
Joined: April 10, 2002
 LT Spice from Linear Technologies.

Free. Several sources on the web have models of various tubes.

However, if you're not simulating, then you can use the generic triode and pentode models in the base LT Spice library.

Another nice feature is the small file size. Very useful for exchanging schematics by email, etc.

Good luck.

Stuart


"My God, it's full of stars"
RE: Schematic CAD, posted on September 11, 2009 at 13:06:39
LinuxGuru
Audiophile

Posts: 108
Joined: November 11, 2008
 Can you please post URLs for tube models for LTSpice ?

Thanks in advance !

RE: Schematic CAD, posted on September 11, 2009 at 13:19:49
Slick
Audiophile

Posts: 308
Location: Maryland
Joined: April 10, 2002
 Sure,

Go here first:

http://www.normankoren.com/Audio/Tubemodspice_article.html

Models are in the link

Read this:

http://www.duncanamps.com/technical/ltspice.html

And find lots here:

http://www.duncanamps.com/spicevalves.html

Good luck and have fun!

You'll miss the smell of solder, though!

Stuart





"My God, it's full of stars"
RE: Schematic CAD, posted on July 30, 2009 at 12:16:30
WALLACE
Audiophile

Posts: 24
Location: London, UK
Joined: July 31, 2008
 I shall give it a go !

thanks !!

W.

RE: Schematic CAD, posted on September 29, 2009 at 07:07:14
reVintage
Audiophile

Posts: 120
Location: Eskilstuna
Joined: June 19, 2008
 The best source for info/models about LTSpice is the "SIM CITY" department at intactaudios forum.
Brgds
Lars

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