Hi, this software is very good. Can you share this software?,
Here you can find the Windows compilation, upon unzip run "curvecaptor.tcl" from CMD or file manager, it runs but the image file open only partially not full image, any idea what's up?
Edit: I resize the curve screen shoot image to 800x600, it's fully display.
More info found here.
Last edited:
Here you can find a triode connected curve for VF14, (similar to EF14). I just trace it with CurveCaptor and model generated and work in LTSpice.
* ef14-3 PSpice model
.subckt ef14-3 P G K
Gp P K VALUE={(0.07667528023m)*limit(V(P,K)*log(1.0+(0.01432477678)+exp((2.400438702)+(2.400438702)*((27.36298562)+(-3289.702555m)*V(G,K))*V(G,K)/V(P,K)))/(2.400438702),0.0,1.0e16)**(1.33452029)}
.ends ef14-3
Here the tutorial in social media.
* ef14-3 PSpice model
.subckt ef14-3 P G K
Gp P K VALUE={(0.07667528023m)*limit(V(P,K)*log(1.0+(0.01432477678)+exp((2.400438702)+(2.400438702)*((27.36298562)+(-3289.702555m)*V(G,K))*V(G,K)/V(P,K)))/(2.400438702),0.0,1.0e16)**(1.33452029)}
.ends ef14-3
Here the tutorial in social media.
Attachments
Last edited:
Does any one have triode model for 3V4/3A4? I searched the thread but couldn't find it. Thanks.
I painted this 3V4 Tung Sol, included screen current and triode Mu est 9. Attached is the pentode and triode connected plot. The inter electrode capacitance can be changed if necessary.
**** 3V4_TS ******************************************
* Created on 07/20/2017 17:52 using paint_kip.jar
* www.dmitrynizh.com/tubeparams_image.htm
* Plate Curves image file: 3v4-ts.png
* Data source link: <plate curves URL>
*----------------------------------------------------------------------------------
.SUBCKT 3V4_TS 1 2 3 4 ; P G K G2
+ PARAMS: CCG=3P CGP=1.4P CCP=1.9P RGI=2000
+ MU=9 KG1=2368.8 KP=69.1 KVB=11.9 KVC=1.85 VCT=0 EX=1.21 KG2=3092.8
* Vp_MAX=200 Ip_MAX=20 Vg_step=1.5 Vg_start=0 Vg_count=8
* Rp=1600 Vg_ac=23.5 P_max=2 Vg_qui=-23.4 Vp_qui=240 UL=0.43 EG2=90
* X_MIN=105 Y_MIN=90 X_SIZE=753 Y_SIZE=757 FSZ_X=1589 FSZ_Y=975 XYGrid=true
* showLoadLine=n showIp=y isDHP=n isPP=n isAsymPP=n isUL=n showDissipLimit=y
* showIg1=n gridLevel2=n isInputSnapped=n
* XYProjections=n harmonicPlot=y harmonics=y
*----------------------------------------------------------------------------------
RE1 7 0 1G ; DUMMY SO NODE 7 HAS 2 CONNECTIONS
E1 7 0 VALUE= ; E1 BREAKS UP LONG EQUATION FOR G1.
+{V(4,3)/KP*LOG(1+EXP((1/MU+(VCT+V(2,3))/V(4,3))*KP))}
G1 1 3 VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))/KG1*ATAN(V(1,3)/KVB)}
* Alexander Gurskii screen current, see audioXpress 2/2011
RE2 8 3 1G ; Dummy
G2 8 3 VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))/KG2*(KVC-ATAN(V(1,3)/KVB))}
E2 8 4 VALUE={0} ; Dummy
RCP 1 3 1G ; FOR CONVERGENCE
C1 2 3 {CCG} ; CATHODE-GRID 1
C2 1 2 {CGP} ; 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
*$
Attachments
That is great. Thanks. I did a line stage with 3V4 in triode mode and it sounds pretty good. I am on travel so I don't have the exact numbers. If the memory served me correctly, I biased at Vp=80V, Vk=4.7V, plate current is around 9mA, which is very close to your plate curve showed. Excellent work!
EF804S and 6463 datasheet as below
http://www.tubebbs.com/tubedata/sheets/128/e/EF804S.pdf
http://www.tubebbs.com/tubedata/sheets/030/6/6463.pdf
http://www.tubebbs.com/tubedata/sheets/128/e/EF804S.pdf
http://www.tubebbs.com/tubedata/sheets/030/6/6463.pdf
6463 SPICE Model
Code:
*
* Generic triode model: 6463_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Mon Aug 07 10:43:13 2017
* Anode
* | Grid
* | | Cathode
* | | |
.SUBCKT 6463_AN A G K
BGG GG 0 V=V(G,K)+0.77801001
BM1 M1 0 V=(0.017215361*(URAMP(V(A,K))+1e-10))**-0.60407708
BM2 M2 0 V=(0.71290164*(URAMP(V(GG)+URAMP(V(A,K))/16.676871)+1e-10))**2.1040771
BP P 0 V=0.0025204717*(URAMP(V(GG)+URAMP(V(A,K))/23.392948)+1e-10)**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.0014550303*V(M1)*V(M2)
BIG IG 0 V=0.0012602358*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)-(0.0014235683*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK G K I=V(IG)
* CAPS
CGA G A 5p
CGK G K 3.4p
CAK A K 0.6p
.ENDS
EF804S SPICE Models
EF804S Triode-Connected SPICE Model
EF804S Pentode SPICE Model
EF804S Triode-Connected SPICE Model
Code:
*
* Generic triode model: EF804S_T_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Mon Aug 07 10:30:12 2017
* Anode
* | Grid
* | | Cathode
* | | |
.SUBCKT EF804S_T_AN A G K
BGG GG 0 V=V(G,K)+0.99990851
BM1 M1 0 V=(0.077333802*(URAMP(V(A,K))+1e-10))**-4.1390536
BM2 M2 0 V=(0.26600208*(URAMP(V(GG)+URAMP(V(A,K))/9.4912949)+1e-10))**5.6390536
BP P 0 V=0.0039476787*(URAMP(V(GG)+URAMP(V(A,K))/35.681281)+1e-10)**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.2635586*V(M1)*V(M2)
BIG IG 0 V=0.0019738393*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)-(0.0021409526*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK G K I=V(IG)
* CAPS
CGA G A 0.007p
CGK G K 7.7p
CAK A K 3.7p
.ENDS
EF804S Pentode SPICE Model
Code:
*
* Generic pentode model: EF804S_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Mon Aug 07 10:29:51 2017
* Anode
* | Screen Grid
* | | Control Grid
* | | | Cathode
* | | | |
.SUBCKT EF804S_AN A G2 G1 K
BGG GG 0 V=V(G1,K)+0.99990851
BM1 M1 0 V=(0.077333802*(URAMP(V(G2,K))+1e-10))**-4.1390536
BM2 M2 0 V=(0.26600208*(URAMP(V(GG)+URAMP(V(G2,K))/9.4912949)))**5.6390536
BP P 0 V=0.0039476787*(URAMP(V(GG)+URAMP(V(G2,K))/35.681281))**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.2635586*V(M1)*V(M2)
BIG IG 0 V=0.0019738393*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)*(0.80840035*(1-URAMP(V(A,K))/(URAMP(V(A,K))+10))**1.5+0.19159965)
BIK3 IK3 0 V=V(IK2)*(URAMP(V(A,K))+5050)/(URAMP(V(G2,K))+5050)
BIK4 IK4 0 V=V(IK3)-URAMP(V(IK3)-(0.0021409526*(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)-(0.0021409526*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 0.007p
CGK G1 K 4.6p
C12 G1 G2 3.1p
CAK A K 3.7p
.ENDS
WE437A SPICE Model
Code:
*
* Generic triode model: 437A_AN
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Mon Aug 07 16:33:53 2017
* Anode
* | Grid
* | | Cathode
* | | |
.SUBCKT 437A_AN A G K
BGG GG 0 V=V(G,K)+-0.05556555
BM1 M1 0 V=(0.0050569583*(URAMP(V(A,K))+1e-10))**-0.394147
BM2 M2 0 V=(0.7919132*(URAMP(V(GG)+URAMP(V(A,K))/41.14861)+1e-10))**1.894147
BP P 0 V=0.036894058*(URAMP(V(GG)+URAMP(V(A,K))/51.961011)+1e-10)**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.02178615*V(M1)*V(M2)
BIG IG 0 V=0.018447029*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)-(0.019517187*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK G K I=V(IG)
* CAPS
CGA G A 3.8p
CGK G K 11p
CAK A K 1p
.ENDS
Sure, you are welcome, please share your designs if these tube models are used.
Sure,I am working on it and will post later.
Sure, you are welcome, please share your designs if these tube models are used.
Have tried 6463 ,EF804S Triode-Connected SPICE Model,it worked well,but for the WE437,it seems like incorrect,the current of R66 shows -0.0116409.attached the screen short and the LTSPICE files.
Best Regards
Leo
Attachments
Last edited:
Try reverse the direction of R66. I found that long ago, not sure why the current phase is reversed.Have tried 6463 ,EF804S Triode-Connected SPICE Model,it worked well,but for the WE437,it seems like incorrect,the current of R66 shows -0.0116409.attached the screen short and the LTSPICE files.
Best Regards
Leo
Edit: in other sim, it shows the direction when you bring the cursor over the components, so please note.
Last edited:
- Home
- Amplifiers
- Tubes / Valves
- Vacuum Tube SPICE Models