Vacuum Tube SPICE Models

mcl2k6 · 2016-09-23 8:23 pm

Hello all,

Anyone has, or can produce a model for 6P42S russian tube?
It is not PL509, nor 6P45S.

Thank you in advance!

211hojbjerg · 2016-10-11 12:22 pm

Hi All,
I'm looking for a EL36/PL36 triode model. I found the pentode model earlier in this thread, but can't find the triode model.

best regards
Karsten

jazbo8 · 2016-10-11 12:40 pm

Have you tried connecting it as a triode in the sim? Should be close enough...

gheo23 · 2016-10-17 6:09 pm

EL36 triode mode

View attachment EL36t.txt
Hope is usefull.

rongon · 2016-10-24 8:38 pm

EL82 or 6P18P model?

I'm hoping for a triode model for 6P18P. I'd settle for EL82, as that is supposed to be the equivalent. I haven't been able to find either one. Maybe someone has a good model they'd like to share? If not, I wonder if I can go to the well again...

EL82 data sheet:
https://frank.pocnet.net/sheets/030/e/EL82.pdf

6P18P data sheet is attached (pdf).

Thanks!
--

jazbo8 · 2016-10-25 8:12 am

6P18P Triode SPICE Model

Code:

*
* Generic triode model: 6P18P_T_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Tue Oct 25 09:10:51 2016
*                  Anode
*                  | Grid
*                  | | Cathode
*                  | | |
.SUBCKT 6P18P_T_AN A G K
BGG   GG   0 V=V(G,K)+0.29755965
BM1   M1   0 V=(0.05636276*(URAMP(V(A,K))+1e-10))**-1.2853515
BM2   M2   0 V=(0.53853168*(URAMP(V(GG)+URAMP(V(A,K))/8.1874685)+1e-10))**2.7853515
BP    P    0 V=0.0041796459*(URAMP(V(GG)+URAMP(V(A,K))/15.203318)+1e-10)**1.5
BIK   IK   0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.0034271395*V(M1)*V(M2)
BIG   IG   0 V=0.0020898229*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)-(0.0025089064*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK  G    K I=V(IG)
* CAPS
CGA   G    A 11p
CGK   G    K 6p
CAK   A    K 0.2p
.ENDS

rongon · 2016-10-25 2:48 pm

Thank you once again. With much appreciation...

Ray Waters · 2016-10-28 10:00 pm

12AV7 SPICE Model

I'm looking for a SPICE model for the 12AV7. Here is a link to a datasheet with plate curves:

www.philbrickarchive.org/12av7_ge.pdf

Thanks to anyone who can help.

cogsncogs · 2016-10-29 2:06 am

Ray Waters said:
I'm looking for a SPICE model for the 12AV7. Here is a link to a datasheet with plate curves:

www.philbrickarchive.org/12av7_ge.pdf

Thanks to anyone who can help.

LTspice?

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

Ray Waters · 2016-10-29 4:17 am

Thanks, Wayne. Yes, I was looking for a model for LTspice.

I was also looking for models for the 7199, including both the triode and pentode sections. Somewhere along the way I came across a 7199T (triode) model you created using Curve Captor; here is that model:

Code:

* 7199T LTSpice model
* Triode section
* Koren model (5 parameters): mean fit error 0.221123mA
* Traced by Wayne Clay on 1/14/2014 using Curve Captor v0.9.1
* from Sylvania data sheet
.subckt 7199T_Syl  P G K
    Bp  P K  I=(0.01861318609m)*uramp(V(P,K)*ln(1.0+exp((0.720964335)+(0.720964335)*(62.874161)*V(G,K)/sqrt((0.712724332k)+(V(P,K))**2)))/(0.720964335))**(1.369823061)
  Cgp G P 2.2p ; 0.2p added
  Cgk G K 3.0p ; 0.7p added
  Cpk P K 0.5p ; 0.2p added
  Rpk P K 1G
  d3  G K dx1
.model dx1 d(is=1n rs=2k cjo=1pf N=1.5 tt=1n)
.ends 7199T

Would you also happen to have a model for the 7199 pentode section? I have an old Koren model that doesn't give realistic results when used in the original Dynaco ST-70 circuit.

Thanks again if you can help.

cogsncogs · 2016-10-29 6:47 pm

Ray Waters said:
Would you also happen to have a model for the 7199 pentode section? I have an old Koren model that doesn't give realistic results when used in the original Dynaco ST-70 circuit.

Thanks again if you can help.

Here's one I made a few years ago. I haven't tinkered with it in quite some time, so YMMV.

Code:

** 7199P ************************************************************
* Created on Sat Dec 21 06:56:50 EST 2013 using tube.model.finder.PaintKIP
* model URL: [URL]http://www.mif.pg.gda.pl/homepages/frank/sheets/168/7/7199.pdf[/URL]
* Screen grid modelled using Alexander L. Gurskii's method audioXpress issue Feb 2011
*--------------------------------------------------
.SUBCKT 7199P 1 4 2 3 ; P G2 G K
+ PARAMS: CCG=5.7p CPG1=0.56p CCP=2.5p RGI=2000
+ MU=140.384 EX=1.2599 KG1=280.0 KG2=660 KP=79.8 KVB=6.6 VCT=0 ; Vp_MAX=300.0 Ip_MAX=0.025 Vg_step=1.0
*--------------------------------------------------
RE1 7 0 1G
RE2 8 3 1G
E1 7 0 VALUE= ; E1 BREAKS UP LONG EQUATION FOR G1.
+{V(4,3)/KP*LN(1+EXP((1/MU+(V(2,3)+VCT)/V(4,3))*KP))}
G1 1 3 VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))/KG1*ATAN(V(1,3)/KVB)}
G2 8 3 VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))/KG2*(2.5708-ATAN(V(1,3)/KVB))}
E2 8 4 VALUE={0}
RCP 1 3 1G ; FOR CONVERGENCE
C1 2 3 {CCG} ; CATHODE-GRID 1
C2 1 2 {CPG1} ; GRID 1-PLATE
C3 1 3 {CCP} ; CATHODE-PLATE
R1 2 5 {RGI} ; FOR GRID CURRENT
D3 5 3 DX ; FOR GRID CURRENT
.MODEL DX D(IS=1N RS=1 CJO=10PF TT=1N)
.ENDS

Ray Waters · 2016-10-29 6:52 pm

Thanks, Wayne! I'll give it a try.

EL8 · 2016-11-28 2:43 am

Hi jazbo8.
Can you make EF50 pentode model as spice format, please.

jazbo8 · 2016-11-28 6:39 am

http://www.diyaudio.com/forums/tubes-valves/243950-vacuum-tube-spice-models-11.html#post3992239

What do you mean by "spice format"?

mcl2k6 · 2016-12-02 7:15 pm

Hi all,

Does any of you have a spice model for the double tetrode QQE02/5 or 6939 ?
It's this tube: http://frank.pocnet.net/sheets/128/6/6939.pdf

Thank you!

rongon · 2016-12-06 5:26 pm

Does anyone know if there are LTspice models for DHT types 30 and 31? These are triodes meant for use with battery powered filament supplies, probably for portable radios. Might be fun to play with for audio, right?

CX-331 (Cunningham): https://frank.pocnet.net/sheets/029/3/31.pdf
RCA 31: https://frank.pocnet.net/sheets/049/3/31.pdf

CX-330 (Cunningham): https://frank.pocnet.net/sheets/029/3/30.pdf
Tung Sol 30: https://frank.pocnet.net/sheets/127/3/30.pdf

--

jazbo8 · 2016-12-07 6:03 am

Type 30 SPICE Model

Code:

*
* Generic triode model: 30_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Wed Dec 07 06:58:37 2016
*             Anode
*             | Grid
*             | | Cathode
*             | | |
.SUBCKT 30_AN A G K
BGG   GG   0 V=V(G,K)+-0.99984937
BM1   M1   0 V=(0.017746886*(URAMP(V(A,K))+1e-10))**-0.27002178
BM2   M2   0 V=(0.8474472*(URAMP(V(GG)+URAMP(V(A,K))/8.5960321)+1e-10))**1.7700218
BP    P    0 V=0.00034871006*(URAMP(V(GG)+URAMP(V(A,K))/10.143443)+1e-10)**1.5
BIK   IK   0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.0002194731*V(M1)*V(M2)
BIG   IG   0 V=0.00017435503*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)-(0.00022717265*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK  G    K I=V(IG)
* CAPS
CGA   G    A 5.7p
CGK   G    K 3.5p
CAK   A    K 2.7p
.ENDS

jazbo8 · 2016-12-07 6:04 am

Type 31 SPICE Model

Code:

*
* Generic triode model: 31_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Wed Dec 07 06:58:58 2016
*             Anode
*             | Grid
*             | | Cathode
*             | | |
.SUBCKT 31_AN A G K
BGG   GG   0 V=V(G,K)+0.40965691
BM1   M1   0 V=(0.039301583*(URAMP(V(A,K))+1e-10))**-0.23955032
BM2   M2   0 V=(0.86229182*(URAMP(V(GG)+URAMP(V(A,K))/3.5038839)+1e-10))**1.7395503
BP    P    0 V=0.00018231552*(URAMP(V(GG)+URAMP(V(A,K))/4.0634549)+1e-10)**1.5
BIK   IK   0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.00011748305*V(M1)*V(M2)
BIG   IG   0 V=9.1157759e-05*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)-(0.0001624432*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK  G    K I=V(IG)
* CAPS
CGA   G    A 5.7p
CGK   G    K 3.5p
CAK   A    K 2.7p
.ENDS

rongon · 2016-12-07 5:14 pm

Awesome! THANK YOU!!

jazbo8 · 2016-12-08 6:31 am

mcl2k6 said:
Does any of you have a spice model for the double tetrode QQE02/5 or 6939 ?

This is an unusual tube, neither ModelPaint nor Ayumi's model builder would work properly. So your best bet is to ask someone with an uTracer to trace the characteristic of the tube and build a model for you.

Vacuum Tube SPICE Models

Member

Member

Ex-Moderator

Member

Member

Attachments

Ex-Moderator

Member

Member

Member

Attachments

Member

Member

Member

Member

Ex-Moderator

Member

Member

Attachments

Ex-Moderator

Ex-Moderator

Member

Ex-Moderator