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18th December 2006, 02:51 PM  #1 
diyAudio Member
Join Date: Dec 2006

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. 
18th December 2006, 09:52 PM  #2 
diyAudio Member
Join Date: Apr 2004
Location: Philly

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 6N30PDR 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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18th December 2006, 09:54 PM  #3 
diyAudio Member
Join Date: Apr 2004
Location: Philly

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((7.450118654e006)^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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18th December 2006, 09:56 PM  #4 
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Join Date: Apr 2004
Location: Philly

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19th December 2006, 06:11 AM  #5 
diyAudio Member
Join Date: Jun 2004
Location: big smoke

Thx aletheian!

19th December 2006, 11:16 AM  #6 
diyAudio Member
Join Date: Apr 2005
Location: Leuven

Or here (dunno if it's the same, spice is beyond me): http://digilander.libero.it/paeng/projects_frame.htm

19th December 2006, 12:48 PM  #7 
diyAudio Moderator Emeritus
Join Date: Jan 2003
Location: Near London. UK

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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19th December 2006, 01:36 PM  #8 
diyAudio Member
Join Date: Dec 2006

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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