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Old 18th December 2006, 02:51 PM   #1
Grahamm is offline Grahamm  South Africa
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Default Spice models

Hi
I am looking for both pspice and xspice models for 6C45pi and 6H30pi tubes.
If someone can perhaps explain the syntax differences, I shall be most grateful.
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Old 18th December 2006, 09:52 PM   #2
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Here are two that i had around from someone else's site:

.SUBCKT KTRIODE A G K
+ PARAMS: MU=37.58299 EX=1.132166 KG1=428.9745 KP=402.1368 KVB=321.0256

+ LG=0.2U VBIG=-0.2 EG=1.0389 KG=0.000769 KRG=3.685584 KVG=0.090943

+ CCG=2.4P CGP=3.9P CCP=0.7P CCH=5.6P

E1 7 0 VALUE = {V(A,K) / KP * LOG(1 + EXP(KP * (1/MU + V(G,K) / SQRT(KVB + V(A,K) * V(A,K)))))}

RE1 7 0 1G

G1 A K VALUE = {(PWR(V(7), EX) + PWRS(V(7), EX)) / KG1}

RCP A K 1G ;

C1 G K {CCG} ;

C2 G A {CGP} ;

C3 A K {CCP} ;

C4 K 0 {CCH} ;

E10 10 0 VALUE = {IF(V(A) - V(K) > 0, V(A) - V(K), 0)}

E11 11 0 VALUE = {IF(V(G) - V(K) > VBIG, V(G) - V(K) - VBIG, 0)}

E12 12 0 VALUE = {(KG * (V(11) ** EG) *

+ (((KRG - 1) / (KVG * V(10) + 1)) + 1)) + LG}

G2 G K VALUE = {IF(V(12) > LG, V(12), LG)}

.ENDS

************************************************** *****************

.SUBCKT 6N30P-DR A G K

X1 A G K KTRIODE

+ PARAMS: MU=14.82339 EX=1.386938 KG1=255.6717 KP=99.30537 KVB=1042.421

+ LG=0.2U VBIG=-0.1 EG=1.414474 KG=0.000769 KRG=5 KVG=0.027177

+ CCG=6.3P CGP=6.5P CCP=2.4P CCH=8P

.ENDS
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Old 18th December 2006, 09:54 PM   #3
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and this one:

6C45Pi Spice 3F4 model
.subckt 6C45Pi P G K
Bp P K I=(0.005984658048m)*uramp(V(P,K)*ln(1.0+(0.0202889 9001)+exp((7.114994862)+(7.114994862)*((56.6867859 5)+(336.3011671m)*V(G,K))*V(G,K)/sqrt((7.450118654e-006)^2+(V(P,K)-(-10.58802286))^2)))/(7.114994862))^(1.976888442)
Cgp G P 4pF
Cgk G K 11pF
Cpk P K 1.9pF
.ends 6C45Pi
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Old 18th December 2006, 09:56 PM   #4
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I think I got them here:

http://www.joeltunnah.com/JT_TUBELIBRARY.txt
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Old 19th December 2006, 06:11 AM   #5
rdf is offline rdf  Canada
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Thx aletheian!
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Old 19th December 2006, 11:16 AM   #6
Klimon is offline Klimon  Belgium
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Or here (dunno if it's the same, spice is beyond me): http://digilander.libero.it/paeng/projects_frame.htm
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Old 19th December 2006, 12:48 PM   #7
EC8010 is offline EC8010  United Kingdom
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I would point out (having measured about 60 6C45):

(1) There is a big difference between "Cold War" and more recently manufactured 6C45.
(2) Even the "Cold War" 6C45 had a large spread.
(3) The published curves are rather optimistic.
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Old 19th December 2006, 01:36 PM   #8
Grahamm is offline Grahamm  South Africa
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Default Spice Models

Thanks for the help so far. With respect to Pspice and Xspice differences, would anyone be able to tell me how to edit a pspice model 6C45 and 6H30 so that I could use it with an Xspice simulator (or the other way round for that matter)?
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