For colleague <JPS64> maybe it's helpful:
************************************
.SUBCKT 71-A 1 2 3 ; P G C (Triode)
*RCA 71-A data
X1 1 2 3 TRIODE MU=3.066 EX=1.4 KG1=5220.0 KP=60.0 KVB=20.25 VCT=0.005 RGI=1000 CCG=19.0p CGP=7.2p CCP=7.0p ;
.ENDS 71-A
************************************
.SUBCKT 45 1 2 3 ; P G C (Triode)
*VynilSavor data 45
X1 1 2 3 TRIODE MU=3.738 EX=1.4 KG1=3585.0 KP=39.0 KVB=151.5 VCT=0.16 RGI=1000 CCG=17.0p CGP=8.2p CCP=6.0p ;
.ENDS 45
************************************
************************************
.SUBCKT 71-A 1 2 3 ; P G C (Triode)
*RCA 71-A data
X1 1 2 3 TRIODE MU=3.066 EX=1.4 KG1=5220.0 KP=60.0 KVB=20.25 VCT=0.005 RGI=1000 CCG=19.0p CGP=7.2p CCP=7.0p ;
.ENDS 71-A
************************************
.SUBCKT 45 1 2 3 ; P G C (Triode)
*VynilSavor data 45
X1 1 2 3 TRIODE MU=3.738 EX=1.4 KG1=3585.0 KP=39.0 KVB=151.5 VCT=0.16 RGI=1000 CCG=17.0p CGP=8.2p CCP=6.0p ;
.ENDS 45
************************************
Attachments
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The above models would not work without the following code or something similar:
Code:
.subckt TRIODE A G K
RE1 E1 0 1MEG ; dummy so node E1 has two connections
Ee1 E1 0 Value {(V(A,K)/{kP}) * log(1 + exp({kP} * (1/{mu} + (V(G,K)+VCT)/sqrt({kVB} + pwr(V(A,K),2)))))}
GIP A K Value {(pwr(V(E1),EX) + pwrs(V(E1),EX))/KG1} ; Norman Koren's
R1 G 5 {rgi} ; for grid forward current
D1 5 K DX ; for grid diode action
CM1 G K {ccg}
CM2 A G {cpg}
CM3 A K {ccp}
RF1 A 0 1G
RF2 G 0 1G ; prevent floating nodes
RF3 K 0 1G
.MODEL DX D(Ron=1 Roff=1G Vfwd=0.75)
.ends
The above models would not work without the following code or something similar:*********************
Correct! but I assume that there is a multi-model database where mathematical models (mathematical equations) are included.
***********************
**MATHEMATICAL MODELS**
***********************
******************
.SUBCKT TRIODE 1 2 3 ; A G C
E1 7 0 VALUE={V(1,3)/KP*LOG(1+EXP(KP*(1/MU+(V(2,3)+VCT)/SQRT(KVB+V(1,3)*V(1,3)))))}
RE1 7 0 1G
G1 1 3 VALUE={(PWR(V(7,0),EX)+PWRS(V(7,0),EX))/KG1}
RCP 1 3 1G ; TO AVOID FLOATING NODES IN MU-FOLLOWER
C1 2 3 {CCG} ; CATHODE-GRID
C2 2 1 {CGP} ; GRID=PLATE
C3 1 3 {CCP} ; CATHODE-PLATE
D3 5 3 DX ; FOR GRID CURRENT
R1 2 5 {RGI} ; FOR GRID CURRENT
.ENDS TRIODE
******************
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Looking for this tube model for preamp build
Or even a 112 tube data
CX-301-A's are the same as RCA UX-201-A's or any other tube with an 01A suffix.
* cx-301a LTSpice model
.subckt cx-301a P G K
+ params: ccg=3.1p cgp=8.1p ccp=2.2p rgi=1000
Bp P K I=(0.001258676752m)*uramp(V(P,K)*ln(1.0+(14.21540262)+exp((34.75371389)+(34.75371389)*((8.485971858)+(-8.616268503m)*V(G,K))*V(G,K)/sqrt((11.07009574)**2+(V(P,K)-(2.05875447))**2)))/(34.75371389))**(1.88212582)
rcp 1 3 1g
c1 2 3 {ccg}
c2 1 2 {cgp}
c3 1 3 {ccp}
r1 2 5 {rgi}
d3 6 3 dx
.model dx d(is=1n rs=1 cjo=1pf tt=1n)
.ends cx-301a
Attachments
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Does anyone have a model for the 12AV7? I searched the forum but didn't see one.
The Ayumi spice model library has a model of the 5965 which is listed as an equivalent tube. So I have used that model.
12AV7 model courtesy of cogsncogs, right here on diyAudio:
5965 is similar, but is supposed to 'sound better', which implies that it is different.
Code:
* 12AV7_GE LTSpice model
* Modified Koren model (8 parameters) mean fit error 0.196893mA
* Traced by Wayne Clay on 9/6/2007 using Curve Captor v0.9.1
* from General Electric data sheet
.subckt 12AV7_GE P G K
Bp P K I=(0.04444253322m)*uramp(V(P,K)*ln(1.0+(-0.01749849009)+exp((2.036595788)+(2.036595788)*((55.22041769)+(-202.4359155m)*V(G,K))*V(G,K)/sqrt((54.03527608)**2+(V(P,K)-(3.013036228))**2)))/(2.036595788))**(1.271149936)
Cgk G K 3.8p ; (3.1p + .7p)
Cpk P K 1.0p ; (0.5p + .5p)
Cgp G P 2.6p ; (1.9p + .7p)
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 12AV7_GE
5965 is similar, but is supposed to 'sound better', which implies that it is different.
Attached 12av7-ge vs 5965 Brimar, only one is close i.e. Vg=0, so here is the model.
* 5965-brm LTSpice model
.subckt 5965-brm P G K
+ params: ccg=3.8p cgp=3p ccp=0.5p rgi=1000
Bp P K I=(0.03112183049m)*uramp(V(P,K)*ln(1.0+(-0.01696282954)+exp((0.4797489307)+(0.4797489307)*((191.7722271)+(-4570.034317m)*V(G,K))*V(G,K)/sqrt((38.68534305)**2+(V(P,K)-(20.90183057))**2)))/(0.4797489307))**(1.20117455)
rcp 1 3 1g
c1 2 3 {ccg}
c2 1 2 {cgp}
c3 1 3 {ccp}
r1 2 5 {rgi}
d3 6 3 dx
.model dx d(is=1n rs=1 cjo=1pf tt=1n)
.ends 5965-brm
* 5965-brm LTSpice model
.subckt 5965-brm P G K
+ params: ccg=3.8p cgp=3p ccp=0.5p rgi=1000
Bp P K I=(0.03112183049m)*uramp(V(P,K)*ln(1.0+(-0.01696282954)+exp((0.4797489307)+(0.4797489307)*((191.7722271)+(-4570.034317m)*V(G,K))*V(G,K)/sqrt((38.68534305)**2+(V(P,K)-(20.90183057))**2)))/(0.4797489307))**(1.20117455)
rcp 1 3 1g
c1 2 3 {ccg}
c2 1 2 {cgp}
c3 1 3 {ccp}
r1 2 5 {rgi}
d3 6 3 dx
.model dx d(is=1n rs=1 cjo=1pf tt=1n)
.ends 5965-brm
Attachments
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Thank you!
Well, I also found a 12AV7 model that Wayne Clay provided me a while back:
Vacuum Tube SPICE Models
I apologize for missing this; I guess I need to work on my forum search skills.
Well, I also found a 12AV7 model that Wayne Clay provided me a while back:
Vacuum Tube SPICE Models
I apologize for missing this; I guess I need to work on my forum search skills.
Tube Cad download
Sorry, I know that this is probably the wrong place for this, but I didn't want to start a new thread and couldn't find the answer.
Does someone know how Glassware's Tube Cad software is delivered? It says it's a download, but when I try to buy it it asks for a shipping address, but no email. Thanks
Sorry, I know that this is probably the wrong place for this, but I didn't want to start a new thread and couldn't find the answer.
Does someone know how Glassware's Tube Cad software is delivered? It says it's a download, but when I try to buy it it asks for a shipping address, but no email. Thanks
Hi,
I read good things about the 6GU5 (ex.A "No C" RIAA Preamp).
Does anyone have the spice pattern of this valve in triode strapped?
Thanks.
I read good things about the 6GU5 (ex.A "No C" RIAA Preamp).
Does anyone have the spice pattern of this valve in triode strapped?
Thanks.
Posted new P-P power amp design
Based on the above 6gu5 triode trace I'am able to trace triode model:
* 6gu5_t LTSpice model
.subckt 6gu5_t P G K
+ params: ccg=7p cgp=0.018p ccp=3.2p rgi=1000
Bp P K I=(0.007083507898m)*uramp(V(P,K)*ln(1.0+(0.09010214854)+exp((0.1103525278)+(0.1103525278)*((1977.236801)+(-462157.0453m)*V(G,K))*V(G,K)/sqrt((74.8365736)**2+(V(P,K)-(51.3568144))**2)))/(0.1103525278))**(1.1312325)
rcp 1 3 1g
c1 2 3 {ccg}
c2 1 2 {cgp}
c3 1 3 {ccp}
r1 2 5 {rgi}
d3 6 3 dx
.model dx d(is=1n rs=1 cjo=1pf tt=1n)
.ends 6gu5_t
Based on the above 6gu5 triode trace I'am able to trace triode model:
* 6gu5_t LTSpice model
.subckt 6gu5_t P G K
+ params: ccg=7p cgp=0.018p ccp=3.2p rgi=1000
Bp P K I=(0.007083507898m)*uramp(V(P,K)*ln(1.0+(0.09010214854)+exp((0.1103525278)+(0.1103525278)*((1977.236801)+(-462157.0453m)*V(G,K))*V(G,K)/sqrt((74.8365736)**2+(V(P,K)-(51.3568144))**2)))/(0.1103525278))**(1.1312325)
rcp 1 3 1g
c1 2 3 {ccg}
c2 1 2 {cgp}
c3 1 3 {ccp}
r1 2 5 {rgi}
d3 6 3 dx
.model dx d(is=1n rs=1 cjo=1pf tt=1n)
.ends 6gu5_t
Attachments
Sorry, I know that this is probably the wrong place for this, but I didn't want to start a new thread and couldn't find the answer.
Does someone know how Glassware's Tube Cad software is delivered? It says it's a download, but when I try to buy it it asks for a shipping address, but no email. Thanks
I think your best bet would be to contact John Broskie directly. His email address is posted on his Tube CAD website (www.tubecad.com).
But note that none of these programs appear to have been updated to run on Windows 8 or later, so if you have any Windows version later than XP you might want to ask John about that too. See the following link:
Additional Software from GlassWare
Based on the above 6gu5 triode trace I'am able to trace triode model:
Nice work !
Thank you very much.
E88C SPICE Model
fresh out of the oven:
fresh out of the oven:
Code:
*
* Generic triode model: E88C_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Thu Sep 21 12:21:57 2017
* Anode
* | Grid
* | | Cathode
* | | |
.SUBCKT E88C_AN A G K
BGG GG 0 V=V(G,K)+0.53015909
BM1 M1 0 V=(0.0036381638*(URAMP(V(A,K))+1e-10))**-0.40119013
BM2 M2 0 V=(0.78897948*(URAMP(V(GG)+URAMP(V(A,K))/58.00193)+1e-10))**1.9011901
BP P 0 V=0.0070566159*(URAMP(V(GG)+URAMP(V(A,K))/73.515131)+1e-10)**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.0041573677*V(M1)*V(M2)
BIG IG 0 V=0.003528308*URAMP(V(G,K))**1.5*(URAMP(V(G,K))/(URAMP(V(A,K))+URAMP(V(G,K)))*1.2+0.4)
BIAK A K I=URAMP(V(IK,IG)-URAMP(V(IK,IG)-(0.0036727794*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK G K I=V(IG)
* CAPS
CGA G A 1p
CGK G K 3.5p
CAK A K 0p
.ENDS
The pin compatible 6EW6 (versus 6GU5) triode curves look a lot better:
Posted new P-P power amp design
Or 6CB6 in triode, or 6JC6 in triode too:
http://www.diyaudio.com/forums/tubes-valves/151206-posted-power-amp-design-151.html#post4628842
Posted new P-P power amp design
Or 6CB6 in triode, or 6JC6 in triode too:
http://www.diyaudio.com/forums/tubes-valves/151206-posted-power-amp-design-151.html#post4628842
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