Vacuum Tube SPICE Models

jazbo8 · 2017-12-11 4:38 pm

You already got two of the most popular packages, either one will do the job. Don't know which one you will like better until you try... 🙂

dreamth · 2017-12-11 4:39 pm

Ok.Thank you!

artosalo · 2017-12-11 6:20 pm

I have used the most simple "interface" between the amplifier and PC.
The amplifier is loaded with 8 ohms resistive dummy load and across this is 10 k potentiometer to adjust suitable level for the sound input of the PC.

dreamth · 2017-12-12 9:53 am

This is a valve based preamp and i have a friend who allready fried his soundcard , an expensive one,while doing fft's ...it's better to have excessive care than none because soundcards input aren't protected to overvoltage.

jazbo8 · 2017-12-12 10:02 am

Yes, most soundcards can only deal with low voltages, so care must be exercised, and voltage divider or auto-ranging front end would be required.

artosalo · 2017-12-12 3:10 pm

Basic knowledge about electronics help a lot to avoid this kind of cases.

danco.vim · 2017-12-17 9:17 am

Hi all, is there any D3A ltspice model ? I've found a triode mode model but I need a plain tetrode model.
Thanks

Danilo

jazbo8 · 2017-12-17 9:20 am

See Vacuum Tube SPICE Models

danco.vim · 2017-12-17 9:25 am

Thanks.
Danilo

MisterX66 · 2017-12-28 6:20 pm

Hi,

Ive been searching but can’t find a LTSpice model for the #47? If someone has one and can share Id appreciate it very much.

jazbo8 · 2017-12-29 3:35 pm

Type 47 SPICE Models

Triode-connected model:

Code:

*
* Generic triode model: 47_T_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Fri Mar 11 07:10:18 2016
*               Anode
*               | Grid
*               | | Cathode
*               | | |
.SUBCKT 47_T_AN A G K
BGG   GG   0 V=V(G,K)+0.8142945
BM1   M1   0 V=(0.01977114*(URAMP(V(A,K))+1e-10))**-0.21780976
BM2   M2   0 V=(0.87320496*(URAMP(V(GG)+URAMP(V(A,K))/6.4131375)+1e-10))**1.7178098
BP    P    0 V=0.00041486062*(URAMP(V(GG)+URAMP(V(A,K))/7.3443668)+1e-10)**1.5
BIK   IK   0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.00027250508*V(M1)*V(M2)
BIG   IG   0 V=0.00020743031*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)-(0.00029498256*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK  G    K I=V(IG)
* CAPS
CGA   G    A 1.2p
CGK   G    K 8.6p
CAK   A    K 13p
.ENDS

Pentode Model:

Code:

*
* Generic pentode model: 47_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Fri Mar 11 07:10:39 2016
*             Anode
*             | Screen Grid
*             | |  Control Grid
*             | |  |  Cathode
*             | |  |  |
.SUBCKT 47_AN A G2 G1 K
BGG   GG   0 V=V(G1,K)+0.99999999
BM1   M1   0 V=(0.036636889*(URAMP(V(G2,K))+1e-10))**-0.42445576
BM2   M2   0 V=(0.77944114*(URAMP(V(GG)+URAMP(V(G2,K))/6.0201306)))**1.9244558
BP    P    0 V=0.00046223798*(URAMP(V(GG)+URAMP(V(G2,K))/7.72365))**1.5
BIK   IK   0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.00027049174*V(M1)*V(M2)
BIG   IG   0 V=0.00023111899*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)*(0.84420562*(1-URAMP(V(A,K))/(URAMP(V(A,K))+10))**1.5+0.15579438)
BIK3  IK3  0 V=V(IK2)*(URAMP(V(A,K))+2540)/(URAMP(V(G2,K))+2540)
BIK4  IK4  0 V=V(IK3)-URAMP(V(IK3)-(0.00032373549*(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)-(0.00032373549*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  1.2p
CGK   G1  K  5.2p
C12   G1  G2 3.4p
CAK   A   K  13p
.ENDS

MisterX66 · 2017-12-29 4:02 pm

Thanks! Awesome, really appreciate it!

rankot · 2018-01-01 10:39 am

PCF802 spice model

I am looking for PCF802 spice model, Google search didn't help. 🙁

tikiroo · 2018-01-01 11:11 am

ECF802 Triode

Code:

* Generic triode model: ECF802T
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Tue Feb 24 21:58:50 2015
*               Plate
*               | Grid
*               | | Cathode
*               | | |
.SUBCKT ECF802T A G K
BGG   GG   0 V=V(G,K)+0.50414128
BM1   M1   0 V=(0.0045659791*(URAMP(V(A,K))+1e-10))**-0.51818208
BM2   M2   0 V=(0.74324314*(URAMP(V(GG)+URAMP(V(A,K))/56.232595)+1e-10))**2.0181821
BP    P    0 V=0.0023316308*(URAMP(V(GG)+URAMP(V(A,K))/75.658411)+1e-10)**1.5
BIK   IK   0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.0013441952*V(M1)*V(M2)
BIG   IG   0 V=0.0011658154*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)-(0.0012121946*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK  G    K I=V(IG)
* CAPS
CGA   G    A 1.5p
CGK   G    K 2.4p
CAK   A    K 1p
.ENDS

ECF802 Pentode

Code:

* Generic pentode model: ECF802P
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Mon Feb 23 21:42:48 2015
*               Plate
*               | Screen Grid
*               | | Control Grid
*               | | | Cathode
*               | | | |
.SUBCKT ECF802P A G2 G1 K
BGG   GG   0 V=V(G1,K)+0.43792508
BM1   M1   0 V=(0.0086088911*(URAMP(V(G2,K))+1e-10))**-0.63017681
BM2   M2   0 V=(0.7041669*(URAMP(V(GG)+URAMP(V(G2,K))/34.363671)))**2.1301768
BP    P    0 V=0.0040790347*(URAMP(V(GG)+URAMP(V(G2,K))/48.800463))**1.5
BIK   IK   0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.0023616451*V(M1)*V(M2)
BIG   IG   0 V=0.0020395173*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)*(0.80118126*(1-URAMP(V(A,K))/(URAMP(V(A,K))+10))**1.5+0.19881874)
BIK3  IK3  0 V=V(IK2)*(URAMP(V(A,K))+2600)/(URAMP(V(G2,K))+2600)
BIK4  IK4  0 V=V(IK3)-URAMP(V(IK3)-(0.0021655364*(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)-(0.0021655364*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  0.06p
CGK   G1  K  3.2p
C12   G1  G2 2.1p
CAK   A   K  2.9p
.ENDS

rankot · 2018-01-01 12:53 pm

Nice!

Thanks a lot!

mr2racer · 2018-01-10 11:51 pm

Is Artsalo's model for 6N13S in post #1269 useable in LT Spice? When I try to add it Spice doesn't recognize the language.

jazbo8 · 2018-01-11 9:18 am

It works just fine.

hsj21 · 2018-01-15 8:11 am

I'm looking for a 5670 SPICE model. Can you help me, thank you.

jazbo8 · 2018-01-15 8:21 am

Please always use the search function before asking for a SPICE model, see http://www.diyaudio.com/forums/tube...s-post5259565.html?highlight=5670#post5259565

rankot · 2018-01-15 9:18 am

From Norman Koren's tube library:

.SUBCKT 5670 1 2 3 ; P G C (Triode)
* RCA Data Sheet
* library format: LTSpice 02-May-2012
X1 1 2 3 TRIODE MU=32.76 EX=1.619 KG1=1359.4 KP=211.19 KVB=47.0 VCT=0.40 RGI=2000 CCG=2.3p CGP=2.4p CCP=0.9p ;
.ENDS 5670

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Vacuum Tube SPICE Models

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