Ufudu I think dgta actually was asking for 6AC7 which is an entirely different tube.. Plenty of EL34/6CA7 models here already.
oops you are right of course, I was in too much of a hurry (and being dyslexic to boot)
I'm sure the mods
will be along smartly and do us the favour and delete the post?
I'm sure the mods
will be along smartly and do us the favour and delete the post?
data, If you don't come right you are welcome to send me a tube & I will characterise it for you.
PM me if you are interested.
PM me if you are interested.
Thanks Ufudu, I don't have any 6AC7 tubes in stock and I don't plan on buying any until/unless modeling shows that I can use them. So I will have to wait until someone else takes the initiative.
GK71 PENTODE MODEL ?
I would like to thank everybody who built all these models as I do understand the work and time needed to build these!
I was wondering on the availability of GK71 pentode model or and 813 pentode model.
Thanks again!
I would like to thank everybody who built all these models as I do understand the work and time needed to build these!
I was wondering on the availability of GK71 pentode model or and 813 pentode model.
Thanks again!
813 SPICE Models
The following models are generated from a curve traced sample of 813, so they do not match up well with the GK-71 nor the 813 datasheets, use them at your risk...
Pentode Model:
Triode-Connected Model:
The following models are generated from a curve traced sample of 813, so they do not match up well with the GK-71 nor the 813 datasheets, use them at your risk...
Pentode Model:
Code:
*
* Generic pentode model: 813_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Thu Dec 03 12:11:17 2015
* Plate
* | Screen Grid
* | | Control Grid
* | | | Cathode
* | | | |
.SUBCKT 813_AN A G2 G1 K
BGG GG 0 V=V(G1,K)+1
BM1 M1 0 V=(0.021743366*(URAMP(V(G2,K))+1e-10))**-0.26335009
BM2 M2 0 V=(0.85065354*(URAMP(V(GG)+URAMP(V(G2,K))/6.868599)))**1.7633501
BP P 0 V=0.00076129879*(URAMP(V(GG)+URAMP(V(G2,K))/8.0744965))**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.00048148075*V(M1)*V(M2)
BIG IG 0 V=0.0003806494*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)*(0.76586181*(1-URAMP(V(A,K))/(URAMP(V(A,K))+10))**1.5+0.23413819)
BIK3 IK3 0 V=V(IK2)*(URAMP(V(A,K))+3150)/(URAMP(V(G2,K))+3150)
BIK4 IK4 0 V=V(IK3)-URAMP(V(IK3)-(0.00052636832*(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)-(0.00052636832*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 0.25p
CGK G1 K 9.6p
C12 G1 G2 6.4p
CAK A K 14p
.ENDSTriode-Connected Model:
Code:
*
* Generic triode model: 813_T_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Thu Dec 03 12:10:53 2015
* Plate
* | Grid
* | | Cathode
* | | |
.SUBCKT 813_T_AN A G K
BGG GG 0 V=V(G,K)+1
BM1 M1 0 V=(0.021743173*(URAMP(V(A,K))+1e-10))**-0.26334736
BM2 M2 0 V=(0.85065486*(URAMP(V(GG)+URAMP(V(A,K))/6.8685993)+1e-10))**1.7633474
BP P 0 V=0.00065254045*(URAMP(V(GG)+URAMP(V(A,K))/8.0744843)+1e-10)**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.00041269775*V(M1)*V(M2)
BIG IG 0 V=0.00032627022*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)-(0.00045117209*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK G K I=V(IG)
* CAPS
CGA G A 0.25p
CGK G K 16p
CAK A K 14p
.ENDS
Hi, someone knows of a spice model for the 6Y6 power tetrode, (or a similar tube close enough) to carry on some simulations?
Thanks
J.
Thanks
J.
6Y6G SPICE Models
Based on the Tung-Sol datasheet.
6Y6G Triode-Connected Model:
6Y6G Pentode Model:
Based on the Tung-Sol datasheet.
6Y6G Triode-Connected Model:
Code:
*
* Generic triode model: 6Y6_T_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Thu Dec 17 11:50:33 2015
* Plate
* | Grid
* | | Cathode
* | | |
.SUBCKT 6Y6_T_AN A G K
BGG GG 0 V=V(G,K)+0.979629
BM1 M1 0 V=(0.11763809*(URAMP(V(A,K))+1e-10))**-1.1516733
BM2 M2 0 V=(0.56568056*(URAMP(V(GG)+URAMP(V(A,K))/3.6919967)+1e-10))**2.6516733
BP P 0 V=0.0021415893*(URAMP(V(GG)+URAMP(V(A,K))/6.5266459)+1e-10)**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.0015796755*V(M1)*V(M2)
BIG IG 0 V=0.0010707946*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)-(0.0015813874*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK G K I=V(IG)
* CAPS
CGA G A 0.7p
CGK G K 12p
CAK A K 7.5p
.ENDS6Y6G Pentode Model:
Code:
*
* Generic pentode model: 6Y6_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Thu Dec 17 11:50:12 2015
* Plate
* | Screen Grid
* | | Control Grid
* | | | Cathode
* | | | |
.SUBCKT 6Y6_AN A G2 G1 K
BGG GG 0 V=V(G1,K)+0.979629
BM1 M1 0 V=(0.11763809*(URAMP(V(G2,K))+1e-10))**-1.1516733
BM2 M2 0 V=(0.56568056*(URAMP(V(GG)+URAMP(V(G2,K))/3.6919967)))**2.6516733
BP P 0 V=0.0021415893*(URAMP(V(GG)+URAMP(V(G2,K))/6.5266459))**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.0015796755*V(M1)*V(M2)
BIG IG 0 V=0.0010707946*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)*(0.960484998*(1-URAMP(V(A,K))/(URAMP(V(A,K))+10))**1.5+0.039515002)
BIK3 IK3 0 V=V(IK2)*(URAMP(V(A,K))+674.1)/(URAMP(V(G2,K))+674.1)
BIK4 IK4 0 V=V(IK3)-URAMP(V(IK3)-(0.0015813874*(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)-(0.0015813874*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 0.7p
CGK G1 K 7.2p
C12 G1 G2 4.8p
CAK A K 7.5p
.ENDSLTSpice model for the 6GU7
Hi. I've looked everywhere for a model for the 6GU7.
Would somebody be able to generate one for me please?
Thanks!
Hi. I've looked everywhere for a model for the 6GU7.
Would somebody be able to generate one for me please?
Thanks!
Not super accurate, but fairly close. 😉
Code:
* ==============================================================
* 6GU7_GE LTSpice model
* Modified Koren model (8 parameters): mean fit error 0.238599mA
* Traced by Wayne Clay on 10/25/2013 using Curve Captor v0.9.1
* from General Electric data sheet
* ==============================================================
.subckt 6GU7_GE P G K
Bp P K I=
+ (0.06701802393m)*uramp(V(P,K)*ln(1.0+(-0.0730722987)+exp((2.148817512)+
+ (2.148817512)*((22.75224837)+(-199.9767109m)*V(G,K))*V(G,K)/sqrt((48.25806774)**2+
+ (V(P,K)-(23.52521336))**2)))/(2.148817512))**(1.259517458)
Cgp G P 3.7 ; 0.7p added
Cgk G K 4.1p ; 0.7p added
Cpk P K 0.64p ; 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 6GU7_GE
I get an error. It says, "Singular matrix: check node m1#source iteration No. 6"
I made a file 6GU7_GE.asy to pick this model from a list of triodes within LTspice. Here's my .asy file -- that is NOT WORKING (so don't try to use it yet):
Do you see anything in there that would generate this error?
--
PS: I use your 6SN7_GE model all the time, and that works great. I tried taking my 6SN7_GE.asy file and modifying it to point to 6GU7_GE.inc. Same error. So I think the incompatibility must be somewhere in the 6GU7_GE.inc file (which is just your model copied-pasted straight from your post).
I made a file 6GU7_GE.asy to pick this model from a list of triodes within LTspice. Here's my .asy file -- that is NOT WORKING (so don't try to use it yet):
Code:
Version 4
SymbolType CELL
LINE Normal -48 0 -28 0
LINE Normal -20 0 -12 0
LINE Normal -4 0 4 0
LINE Normal 12 0 20 0
LINE Normal 28 0 36 0
LINE Normal 0 -48 0 -16
LINE Normal -20 -16 20 -16
LINE Normal -20 -12 20 -12
LINE Normal -20 -16 -20 -12
LINE Normal 20 -16 20 -12
LINE Normal -24 12 24 12
LINE Normal -32 48 -32 20
LINE Normal -24 12 -32 20
LINE Normal 24 12 32 20
LINE Normal -28 16 28 16
CIRCLE Normal -48 -48 48 48
WINDOW 0 8 -64 Left 0
WINDOW 3 -24 64 Left 0
SYMATTR Value 6GU7_GE
SYMATTR Prefix X
SYMATTR SpiceModel 6GU7_GE.inc
SYMATTR Value2 6GU7_GE
PIN 0 -48 NONE 0
PINATTR PinName P
PINATTR SpiceOrder 1
PIN -48 0 NONE 0
PINATTR PinName G
PINATTR SpiceOrder 2
PIN -32 48 NONE 0
PINATTR PinName K
PINATTR SpiceOrder 3Do you see anything in there that would generate this error?
--
PS: I use your 6SN7_GE model all the time, and that works great. I tried taking my 6SN7_GE.asy file and modifying it to point to 6GU7_GE.inc. Same error. So I think the incompatibility must be somewhere in the 6GU7_GE.inc file (which is just your model copied-pasted straight from your post).
Last edited: