Vacuum Tube SPICE Models

jazbo8 · 2018-10-11 8:44 pm

caglio said:
thanks Jazbo!

You are welcome, let us know how it works out.

khutch04 · 2018-10-12 9:33 pm

Thanks for the suggestions! The radio finally arrived today so I will be looking at the hardware for a while but I will see if any of those tools will build suitable models for me.

MisterX66 · 2018-10-13 6:30 pm

I'm looking for a model for 6AT6? Would be greatly appreciated.

cogsncogs · 2018-10-13 7:15 pm

Code:

* ==============================================================
*
* Generic triode model: 6AT6
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Sun Dec  3 08:54:34 2017
*               Plate
*               | Grid
*               | | Cathode
*               | | |
.SUBCKT 6AT6_AN A G K
BGG   GG   0 V=V(G,K)+0.50512352
BM1   M1   0 V=(0.0024974391*(URAMP(V(A,K))+1e-10))**-0.28966052
BM2   M2   0 V=(0.83814778*(URAMP(V(GG)+URAMP(V(A,K))/64.807271)+1e-10))**1.7896605
BP    P    0 V=0.0010922674*(URAMP(V(GG)+URAMP(V(A,K))/77.32201)+1e-10)**1.5
BIK   IK   0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.00067834851*V(M1)*V(M2)
BIG   IG   0 V=0.00054613372*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)-(0.0005673914*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK  G    K I=V(IG)
* CAPS
CGA   G    A 2.2p ; 0.2p added (2p)
CGK   G    K 2.9p ; 0.7p added (2.2p)
CAK   A    K 1p ; 0.2p added (0.8p)
.ENDS

Code:

* ==============================================================
* 6AT6_TS LTSpice model
* Rydel model (5 parameters): mean fit error 0.0635511mA
* Traced by Wayne Clay on 10/07/2013 using Curve Captor v0.9.1
* from Tung-Sol data sheet
* ==============================================================
.subckt 6AT6_TS  P G K
    Bp  P K  I=
+ ((0.001727236049m)+(0.0001235071398m)*V(G,K))*uramp((66.61742228)*
+ V(G,K)+V(P,K)+(35.01009521))**1.5 * V(P,K)/(V(P,K)+(5.08361573))
  Cgk G K 3.0p ; 0.7p added
  Cpk P K 1.3p ; 0.2p added
  Cgp G P 2.4p ; 0.2p 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 6AT6_TS

MisterX66 · 2018-10-13 8:39 pm

Thanks for the quick response!

artosalo · 2018-10-15 4:12 pm

I am searching for the models of ECL11 triode and tetrode halves.
Does anybody have ?
http://www.mif.pg.gda.pl/homepages/frank/sheets/076/e/ECL11.pdf

jazbo8 · 2018-10-16 5:32 am

ECL11 Triode SPICE Model

Just the triode section, no luck with the pentode section unless you can provide the triode-connected characteristic...

ECL11 Triode

Code:

*
* Generic triode model: ECL11_T_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Tue Oct 16 06:29:28 2018
*                  Anode
*                  | Grid
*                  | | Cathode
*                  | | |
.SUBCKT ECL11_T_AN A G K
BGG   GG   0 V=V(G,K)+0.52921744
BM1   M1   0 V=(0.0072842489*(URAMP(V(A,K))+1e-10))**-1.0336627
BM2   M2   0 V=(0.5920283*(URAMP(V(GG)+URAMP(V(A,K))/56.007381)+1e-10))**2.5336627
BP    P    0 V=0.019311188*(URAMP(V(GG)+URAMP(V(A,K))/94.602541)+1e-10)**1.5
BIK   IK   0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.013141741*V(M1)*V(M2)
BIG   IG   0 V=0.0096555941*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)-(0.0099625964*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK  G    K I=V(IG)
* CAPS
CGA   G    A 0.016p
CGK   G    K 4.9p
CAK   A    K 1.5p
.ENDS

artosalo · 2018-10-16 7:48 am

Thank You.
Would it be sufficient to get triode curves with a µTracer or similar?
I ask if I can find somebody to make the measurements.

jazbo8 · 2018-10-16 8:03 am

You are welcome. Yes, using uTracer will do. Of course, you can make the pentode model directly from uTracer, which might be even more accurate.

artosalo · 2018-10-16 12:51 pm

What else is needed in addition to this tube data/pentode curves ?

http://www.mif.pg.gda.pl/homepages/frank/sheets/076/e/ECL11.pdf

jazbo8 · 2018-10-16 1:49 pm

The triode-connected curves for the pentode section.

artosalo · 2018-10-17 4:02 pm

I try to get...

rufus74pz · 2018-10-24 2:21 pm

I'm looking for a model for 38HE7 in triode? Would be greatly appreciated.

rankot · 2018-10-27 6:31 pm

Looking for a model for 6N17B (Russian 6Н17Б)...

choique · 2018-10-27 7:19 pm

6BM8P_T

I am looking for LTSpice model Triode connected 6BM8P/ECL82.

RajkoM · 2018-10-27 8:30 pm

For simulation I used this:

.SUBCKT ECL82_T A G K
*
* Calculate contribution to cathode current
*
Eat at 0 VALUE={0.636*ATAN(V(A,K)/10)}
Erp rp 0 VALUE={PWR(LIMIT{V(A,K),0,10000},0.7)}
Egs gs 0 VALUE={LIMIT{V(rp)*2.1+PWRS(V(G,K),0.8)*22,0,1E6}}
Egs2 gs2 0 VALUE={PWRS(V(gs),1.5)*12.45E-6}
Ecath cc 0 VALUE={V(gs2)*V(at)}
*
* Calculate anode current
*
Ga A K VALUE={V(cc)}
*
* Capacitances
*
Cgk G K 2.7p
Cga A G 4p
Cak A K 4p

.ENDS

choique · 2018-10-28 1:20 am

What means ECL82_T

Thanks for yr Kindly reply,
ECL82_T means What?
ECL82's Triode Section
or
ECL82 Pentode Section's Triode Connection? --- I Want This One.
Thanks

tikiroo · 2018-10-28 3:22 am

*
* Generic triode model: 6BM8PT
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Sat Mar 8 22:39:18 2008
* Plate
* | Grid
* | | Cathode
* | | |
.SUBCKT 6BM8PT A G K
BGG GG 0 V=V(G,K)+0.90753334
BM1 M1 0 V=(0.058205333*(URAMP(V(A,K))+1e-10))**-0.96337515
BM2 M2 0 V=(0.60892065*(URAMP(V(GG)+URAMP(V(A,K))/6.7189608)+1e-10))**2.4633752
BP P 0 V=0.0032859022*(URAMP(V(GG)+URAMP(V(A,K))/11.034214)+1e-10)**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.0021448732*V(M1)*V(M2)
BIG IG 0 V=0.0016429511*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)-(0.002099612*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK G K I=V(IG)
* CAPS
CGA G A 3.9p
CGK G K 5.4p
CAK A K 7.7p
.ENDS

EL8 · 2018-10-28 7:21 am

I am looking for PSpice model RES964

RajkoM · 2018-10-28 12:59 pm

choique said:
Thanks for yr Kindly reply,
ECL82_T means What?
ECL82's Triode Section
or
ECL82 Pentode Section's Triode Connection? --- I Want This One.
Thanks

Means Triode section. And here is Pentode section:
(Of course, pay attention to the Ayumi 6BM8 models)

.SUBCKT ECL82_P A S G K
*
* Calculate contribution to cathode current
*
Eat at 0 VALUE={0.636*ATAN(V(A,K)/15)}
Egs gs 0 VALUE={LIMIT{V(S,K)/7+V(G,K)*1.3+V(A,K)/700,0,1E6}}
Egs2 gs2 0 VALUE={PWRS(V(gs),1.24)}
Ecath cc 0 VALUE={V(gs2)*V(at)}
*
* Calculate anode current
*
Ga A K VALUE={3.45E-3*V(cc)}
*
* Calculate screen current
*
Escrn sc 0 VALUE={V(gs2)*(1.1-V(at))}
Gs S K VALUE={3.7E-3*V(sc)*LIMIT{V(S,K),0,10}/10}
*
* Capacitances
*
Cg1 G K 9.6p
Cak A K 9.3p
Cg1a G A 0.35p

.ENDS

Vacuum Tube SPICE Models

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