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Old 30th December 2006, 03:48 PM   #11
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Quote:
Originally posted by Robert McLean


If you search this forum for "Curve Captor" you will find a very useful program for generating triode spice models.

I have downloaded Curve Captor... both Mac and Win binaries, but I can't get them to compile properly on either platform. I did manage to get the Windows version to "compile", there were a few errors, so it crashes shortly after startup. I even e mailed Andrei about a year ago, and followed his instructions, but no go.

Maybe that'll be my new year's resolution... to get that program running.
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Old 30th December 2006, 08:27 PM   #12
lndm is offline lndm  Australia
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Andrei has a few models on his site
http://home.netcom.com/~wb2jia/tubes/spice3.txt
Most recently I used his 417A model on this page. There are several models for each valve, you need to switch the comment marks to select one. I use Circuitmaker 2000 and I needed to change the syntax (m to e-3) within the line of interest and then imported it.

Korens model is there for the 417. I think the 12AX7 is on the previous page in Andreis site but I don't recall whether Korens version is there.
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Old 31st December 2006, 02:57 AM   #13
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i have been tweking the parameters by hand, and I have a 12ax7 and 6sn7 based on a curve captor anode model that someone traced out... almost dead on the data sheets now, but it is a lot of tweaking and trial and error. What i REALLY need to do is get ahold of some traces of new manufacture tubes so that I can design models around them.
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Old 31st December 2006, 11:18 AM   #14
Joel is offline Joel  United States
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I used CurveCaptor to generate models for 6SN7, 12AX7, 12AU7, 12AT7, ECC88, 6C4Pi, and 6C45Pi.

http://www.joeltunnah.com
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Old 31st December 2006, 05:20 PM   #15
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Quote:
Originally posted by Joel
I used CurveCaptor to generate models for 6SN7, 12AX7, 12AU7, 12AT7, ECC88, 6C4Pi, and 6C45Pi.

http://www.joeltunnah.com
hey Joel. I have been meaning to thank you for posting those, but I haven't seen you around in the last few days.

I have been using models based on the equasions in your models quite a bit this week. Since I can't get Curve Captor to work, the next best thing is finding someone else's traces and tweaking them. They are getting pretty close. They were close to begin with, but i am trying to average the curves from a bunch of data sheets and also make the model work better at higher grid bias levels.
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Old 1st January 2007, 01:40 PM   #16
Joel is offline Joel  United States
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I used the GE datasheets for most of them. Good traces are harder to come by for the Russian tubes.

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