Vacuum Tube SPICE Models

jazbo8 · 2014-09-25 7:01 am

Did you try the 6AK6? Suppose to be a substitution.

sneakers563 · 2014-09-25 6:49 pm

Would someone be so kind as to create an Ayumi model for the 6945 for me? The datasheet is here. Thanks!

jazbo8 · 2014-09-26 6:31 am

6945 SPICE Model

Code:

*
* Generic pentode model: 6945_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Fri Sep 26 07:24:35 2014
*               Plate
*               | Screen Grid
*               | |  Control Grid
*               | |  |  Cathode
*               | |  |  |
.SUBCKT 6945_AN A G2 G1 K
BGG   GG   0 V=V(G1,K)+0.82595663
BM1   M1   0 V=(0.11497191*(URAMP(V(G2,K))+1e-10))**-1.116351
BM2   M2   0 V=(0.57331756*(URAMP(V(GG)+URAMP(V(G2,K))/3.7111884)))**2.616351
BP    P    0 V=0.00098563922*(URAMP(V(GG)+URAMP(V(G2,K))/6.4731811))**1.5
BIK   IK   0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.00070876255*V(M1)*V(M2)
BIG   IG   0 V=0.00049281961*URAMP(V(G1,K))**1.5*(URAMP(V(G1,K))/(URAMP(V(A,K))+URAMP(V(G1,K)))*1.2+0.4)
BIK2  IK2  0 V=V(IK,IG)*(1-0.4*(EXP(-URAMP(V(A,K))/URAMP(V(G2,K))*15)-EXP(-15)))
BIG2T IG2T 0 V=V(IK2)*(0.969983595*(1-URAMP(V(A,K))/(URAMP(V(A,K))+10))**1.5+0.030016405)
BIK3  IK3  0 V=V(IK2)*(URAMP(V(A,K))+1775)/(URAMP(V(G2,K))+1775)
BIK4  IK4  0 V=V(IK3)-URAMP(V(IK3)-(0.0007298232*(URAMP(V(A,K))+URAMP(URAMP(V(G2,K))-URAMP(V(A,K))))**1.5))
BIP   IP   0 V=URAMP(V(IK4,IG2T)-URAMP(V(IK4,IG2T)-(0.0007298232*URAMP(V(A,K))**1.5)))
BIAK  A    K I=V(IP)+1e-10*V(A,K)
BIG2  G2   K I=URAMP(V(IK4,IP))
BIGK  G1   K I=V(IG)
* CAPS
CGA   G1  A  0.13p
CGK   G1  K  3p
C12   G1  G2 2p
CAK   A   K  5.5p
.ENDS

artosalo · 2014-09-28 8:43 pm

Does anybody have model for 6BL7 ?

cogsncogs · 2014-09-28 11:31 pm

artosalo said:
Does anybody have model for 6BL7 ?

Code:

* Copyright (C) 2001-2005 Andrei Frolov <frolov@cita.utoronto.ca>
* Distributed under the terms of GNU Public License.
* 6BL7  -  IDH medium-mu high-transconductance twin triode
* Gp  P K  VALUE={(m)*limit(()*V(G,K)+V(P,K),0.0,1.0e16)**1.5}
* From GE 6BL7GTA datasheet - traced on 20-01-04 by AF
.subckt 6BL7  P G K
    Cgp G P  6.0p
    Ci  G K  4.2p
    Co  P K  0.9p
* Modified Koren model (8 parameters): mean fit error 1.05828 mA
    Gp  P K  VALUE=
+ {(0.03929147784m)*limit(V(P,K)*ln(1.0+(-0.1891613093)+exp((3.601060498)+
+ (3.601060498)*((17.90493807)+(-31.36422356m)*V(G,K))*V(G,K)/sqrt((55.20536279)**2+
+ (V(P,K)-(5.760795362))**2)))/(3.601060498),0.0,1.0e16)**(1.471182374)}
.ends 6BL7

I made this one in Curve Captor using Ayumi Nakabayashi's 6BL7.csv file.

Code:

* --------------------------------------------------------------
* 6BL7_ANK PSpice model for Micro-Cap
* Modified Koren model (8 parameters): mean fit error 1.36513mA
* Traced by Wayne Clay using Curve Captor v0.9.1
* with data from Ayumi Nakabayashi 6BL7.csv file
* --------------------------------------------------------------
.subckt 6BL7_ANK  P G K
    Gp  P K  VALUE=
+ {(0.04242666662m)*limit(V(P,K)*ln(1.0+(-0.1223149098)+exp((4.230103947)+
+ (4.230103947)*((17.49129867)+(-28.22560122m)*V(G,K))*V(G,K)/sqrt((61.35171517)**2+
+ (V(P,K)-(8.607832432))**2)))/(4.230103947),0.0,1.0e16)**(1.457384339)}
  Cgp G P 6.7p ; 0.7p added
  Cgk G K 4.7p ; 0.5p added
  Cpk P K 1.6p ; 0.7p added
  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 6BL7_ANK

artosalo · 2014-09-29 8:45 am

Thank You.

needtubes · 2014-10-17 7:45 pm

Anyone have a decent tetrode model of the Russian subminiature 6J10B-V (6Ж10Б-В)? I tried making one with paint_kip, but it doesn't behave well in LTSpice. Actually, none of my pentode models work... Is there a trick to paint_kip?

Datasheet here.

needtubes · 2014-10-17 9:29 pm

Ah. Think I have it now...

Looks like all tetrode models made with paint_kip.jar need to have the 'pinouts' changed from "1 2 3 4" to "1 4 2 3".

jazbo8 · 2014-10-19 9:04 am

needtubes said:
Ah. Think I have it now...

Looks like all tetrode models made with paint_kip.jar need to have the 'pinouts' changed from "1 2 3 4" to "1 4 2 3".

Yes, there is a small typo in Dmitry's app... but did you manage to get the pentode curves to match up? I could never do it properly no matter how hard I tried.😛

needtubes · 2014-10-19 5:38 pm

Couldn't get a precise match, but got in the ballpark. Seemed like if I could match the top curves (near Vg=0), then the bottom curves were off and vice versa.

mr2racer · 2014-10-25 6:00 pm

Is there a 6N6p/ECC99 model that anyone has seen?

jazbo8 · 2014-10-25 9:12 pm

ECC99 ~ 12BH7

RajkoM · 2014-10-25 10:21 pm

Try this model. I have not tried ECC99 in practice, but I have planned.

* Generic triode model: ECC99_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Sun Jan 12 18:46:10 2014
* Plate
* | Grid
* | | Cathode
* | | |
.SUBCKT ECC99 A G K
BGG GG 0 V=V(G,K)+0.042958289
BM1 M1 0 V=(0.02038404*(URAMP(V(A,K))+1e-10))**-0.86570009
BM2 M2 0 V=(0.63406177*(URAMP(V(GG)+URAMP(V(A,K))/17.952193)+1e-10))**2.3657001
BP P 0 V=0.005978906*(URAMP(V(GG)+URAMP(V(A,K))/28.313003)+1e-10)**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.0037149974*V(M1)*V(M2)
BIG IG 0 V=0.002989453*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)-(0.0033089913*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK G K I=V(IG)
* CAPS
CGA G A 5.8p
CGK G K 5.1p
CAK A K 0.8p
.ENDS

mr2racer · 2014-10-26 1:22 am

Sorry to bother you all again. But if I copy the above code how do I convert it to a spice model? I know nothing about computer programming. I'm assuming I must paste it into a particular type of file?

mr2racer · 2014-10-26 7:23 pm

From what I can glean from spice help I need to use an existing triode symbol. Then edit that and insert the above .subckt text. But when I try the triode models I have say they can't be edited? Is there a generic triode model/symbol?

kevinkr · 2014-10-27 2:23 am

Unless you add that subckt to your existing library and add a triode ASY file named ECC99 you will need to use the .inc command and rename the subckt file as an .inc file.. You cannot edit or modify the symbol or file associated with it from the simulator directly.

Is this what you are looking for?

artosalo · 2014-11-01 12:11 pm

Try this.
Just douple click it after downloading.

deafbykhorns · 2014-11-17 1:11 am

looking for the 3C24 tube model

THanks

jazbo8 · 2014-11-22 6:57 am

This is an unusal tube for audio application, so you are pretty much on your own for this one. My suggestion is to follow the directions given in this paper and see how far you can get.

Ray Waters · 2014-11-26 5:59 pm

D3A Pentode and Triode Models

I'm looking for Ayumi models for the D3A. Both pentode and triode-connected models would be helpful. I searched the forum here but didn't find them, so I apologize if someone has already posted them.

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Vacuum Tube SPICE Models

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