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Old 13th November 2012, 06:40 AM   #131
diyAudio Member
 
Join Date: Apr 2012
Andrei, thank you for the good tool!

I just tried version 0.9.1 on a linux-box with Ubuntu 12.04LTS.
Unzip all files from the distribution to a single directory and get the patch file "tubefit-gcc4.patch.txt" posted earlier in this thread.

To get it running, you have to install some tools on a command line:
$ sudo apt-get install gcc m4 tk8.5

This will install GCC 4.6, so you must apply the patch "tubefit-gcc4.patch.txt":
$ patch -b < tubefit-gcc4.patch.txt

This command alters the file tubefit.c.

Then simply compile and install with:
$ sudo make install
$ sudo cp models.m4 /usr/local/bin

Now you can run and enjoy
$ curvecaptor


Torsten
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Old 13th November 2012, 07:21 AM   #132
Zoran is offline Zoran  Serbia
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Join Date: Jan 2004
Location: Belgrade
I am using N Koren Matlab sheets
for the tubes spice models
.
but recently i found A dimitry java set of software that is good
no data entery just point to the picture
here is the link to download
Model Paint Tools: Trace Tube Parameters over Plate Curves, Interactively
the software runs trough the terminal (i am a mac user)
syntax on terminal is
.
java -jar "/location of the jar file/paint_kit.jar" "/location of the file/tube curves.jpg"
.
examle
java -jar "/Users/zoran/Desktop/Model_Paint_Tools/paint_kit.jar" "/Users/zoran/Desktop/Model_Paint_Tools/Graph/12au7.jpg"
.
on win is the same with differences in syntax for the run command window
.
Also I found some soft called Montega (google)
now I am going to read a bit this thread
cheers
.
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Old 27th December 2013, 01:16 AM   #133
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Location: GMT-6
For linux users, one more addition to Torsten's post. To get the distortion plots to work, you will also need to install fftw2 besides tcl & tk.

FWIW, I just used gcc 4.8.1 and it built properly.
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Old 24th May 2015, 04:04 PM   #134
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Join Date: May 2015
Hi there. I need some help.
I finally figured out how to use Curve Captor and get a SPICE model. I copied and pasted the output model from Curve Captor into a text file. From there I inported that text file into LTSpice. Here is the contents of said text file:

* 6aw8a macro model
.subckt 6aw8a P G K
koren5(0.03503586366,6.707742819,75.61368016,4.088 058766,1.154855707)
.ends 6aw8a


* 6aw8a LTSpice model
.subckt 6aw8a P G K
Bp P K I=(0.03503586366m)*uramp(V(P,K)*ln(1.0+exp((6.7077 42819)+(6.707742819)*(75.61368016)*V(G,K)/sqrt((4.088058766k)+(V(P,K))**2)))/(6.707742819))**(1.154855707)
.ends 6aw8a

Then, I used the Auto Generate Component feature to make a component out of the model. I then made a test circuit to use the new component in. However, when I run the simulation, I get the following error.

Click the image to open in full size.

I don't know what is wrong. I know that the problem is in this component because when I remove it from the simulation, it runs without error.
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Old 24th May 2015, 11:28 PM   #135
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Join Date: Jul 2003
Location: Wayne, West Virginia
You only need this part for your model:
Code:
* 6aw8a LTSpice model
.subckt 6aw8a P G K
Bp P K I=(0.03503586366m)*uramp(V(P,K)*ln(1.0+exp((6.707742819)+(6.707742819)*(75.61368016)*V(G,K)/sqrt((4.088058766k)+(V(P,K))**2)))/(6.707742819))**(1.154855707)
.ends 6aw8a
You will also need to add the inter-electrode capacitances as in my model below:
Code:
* 6AW8A (triode section) LTSpice model
* Modified Koren model (8 parameters): mean fit error 0.115916mA
* Traced by Wayne Clay on 10/19/2014 using Engauge Digitizer
* and Curve Captor v0.9.1
.subckt 6AW8AT  P G K
    Bp  P K  I=
+ (0.03960037226m)*uramp(V(P,K)*ln(1.0+(-0.02810705112)+exp((5.049360412)+
+ (5.049360412)*((71.53397072)+(-1430.15241m)*V(G,K))*V(G,K)/sqrt((60.13556928)**2+
+ (V(P,K)-(11.95246653))**2)))/(5.049360412))**(1.130546864)
    Cgk G K 3.9p ; 0.7p added (3.2p)
    Cgp G P 2.9p ; 0.7p added (2.2p)
    Cpk P K 0.52p ; 0.2p added (0.32p)
    Rpk P K 1G ; to avoid floating nodes
    d3  G K dx1
.model dx1 d(is=1n rs=2k cjo=1pf N=1.5 tt=1n)
.ends 6AW8AT
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Old 27th May 2015, 09:41 PM   #136
andrei is offline andrei  Canada
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Join Date: Dec 2002
Location: Canada
I've posted a walk-through video making a triode model:

https://youtu.be/tGPOx9GtXlM

Ancient 0.9.1 still works on the latest Mac OS X 10.10.3... I'm sort of feeling nostalgic.
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