Vacuum Tube SPICE Models

Ciu · 2023-12-04 5:53 pm

Hello ,
I'm looking for 6K4P-ev LtSpice model in Triode mode
Thanks for any help

qiuchun63 · 2023-12-06 10:57 am

6DR7 simulation model

.SUBCKT 6DR7_1 1 2 3 ; Plate Grid Cathode

PARAMS: CCG=2.2P CGP=4.5P CCP=0.34P RGI=2000

MU=67.2 KG1=1300.05 KP=222842.88 KVB=5157.12 VCT=0.1801 EX=1.226

Vp_MAX=400 Ip_MAX=14 Vg_step=1 Vg_start=0 Vg_count=5

Rp=4000 Vg_ac=55 P_max=1.5 Vg_qui=-48 Vp_qui=300

X_MIN=19 Y_MIN=9 X_SIZE=457 Y_SIZE=402 FSZ_X=1260 FSZ_Y=630 XYGrid=false

showLoadLine=n showIp=y isDHT=n isPP=n isAsymPP=n showDissipLimit=y

showIg1=n gridLevel2=n isInputSnapped=n

XYProjections=n harmonicPlot=n dissipPlot=n

*----------------------------------------------------------------------------------
E1 7 0 VALUE={V(1,3)/KP*LN(1+EXP(KP*(1/MU+(VCT+V(2,3))/SQRT(KVB+V(1,3)*V(1,3)))))}
RE1 7 0 1G ; TO AVOID FLOATING NODES
G1 1 3 VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))/KG1}
RCP 1 3 1G ; TO AVOID FLOATING NODES
C1 2 3 {CCG} ; CATHODE-GRID
C2 2 1 {CGP} ; GRID=PLATE
C3 1 3 {CCP} ; CATHODE-PLATE
D3 5 3 DX ; POSITIVE GRID CURRENT
R1 2 5 {RGI} ; POSITIVE GRID CURRENT
.MODEL DX D(IS=1N RS=1 CJO=10PF TT=1N)
.ENDS

.SUBCKT 6DR7_2 1 2 3 ; Plate Grid Cathode

PARAMS: CCG=5.5P CGP=8.5P CCP=1P RGI=2000

MU=9.2 KG1=225 KP=30 KVB=711 VCT=0.242 EX=1.148

Vp_MAX=400 Ip_MAX=140 Vg_step=5 Vg_start=0 Vg_count=10

Rp=4000 Vg_ac=55 P_max=9 Vg_qui=-48 Vp_qui=300

X_MIN=27 Y_MIN=13 X_SIZE=482 Y_SIZE=421 FSZ_X=1260 FSZ_Y=630 XYGrid=false

showLoadLine=n showIp=y isDHT=n isPP=n isAsymPP=n showDissipLimit=y

showIg1=n gridLevel2=n isInputSnapped=n

XYProjections=n harmonicPlot=n dissipPlot=n

*----------------------------------------------------------------------------------
E1 7 0 VALUE={V(1,3)/KP*LN(1+EXP(KP*(1/MU+(VCT+V(2,3))/SQRT(KVB+V(1,3)*V(1,3)))))}
RE1 7 0 1G ; TO AVOID FLOATING NODES
G1 1 3 VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))/KG1}
RCP 1 3 1G ; TO AVOID FLOATING NODES
C1 2 3 {CCG} ; CATHODE-GRID
C2 2 1 {CGP} ; GRID=PLATE
C3 1 3 {CCP} ; CATHODE-PLATE
D3 5 3 DX ; POSITIVE GRID CURRENT
R1 2 5 {RGI} ; POSITIVE GRID CURRENT
.MODEL DX D(IS=1N RS=1 CJO=10PF TT=1N)
.ENDS

b_force · 2023-12-06 11:02 am

@qiuchun63
I assume that (2) is the output triode with the higher power dissipation?

jcalvarez · 2023-12-06 11:21 am

@qiuchun63 Thank you very much for sharing new models, much appreciated!
Could you please share them as code? That will allow us just cut and paste. You can wrap your models with

Code:

 your model text here

Sorry for me being lazy

qiuchun63 · 2023-12-06 11:44 am

.SUBCKT 6DR7_1 1 2 3 ; Plate Grid Cathode

PARAMS: CCG=2.2P CGP=4.5P CCP=0.34P RGI=2000

MU=67.2 KG1=1300.05 KP=222842.88 KVB=5157.12 VCT=0.1801 EX=1.226

Vp_MAX=400 Ip_MAX=14 Vg_step=1 Vg_start=0 Vg_count=5

Rp=4000 Vg_ac=55 P_max=1.5 Vg_qui=-48 Vp_qui=300

X_MIN=19 Y_MIN=9 X_SIZE=457 Y_SIZE=402 FSZ_X=1260 FSZ_Y=630 XYGrid=false

showLoadLine=n showIp=y isDHT=n isPP=n isAsymPP=n showDissipLimit=y

showIg1=n gridLevel2=n isInputSnapped=n

XYProjections=n harmonicPlot=n dissipPlot=n

*----------------------------------------------------------------------------------
E1 7 0 VALUE={V(1,3)/KP*LN(1+EXP(KP*(1/MU+(VCT+V(2,3))/SQRT(KVB+V(1,3)*V(1,3)))))}
RE1 7 0 1G ; TO AVOID FLOATING NODES
G1 1 3 VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))/KG1}
RCP 1 3 1G ; TO AVOID FLOATING NODES
C1 2 3 {CCG} ; CATHODE-GRID
C2 2 1 {CGP} ; GRID=PLATE
C3 1 3 {CCP} ; CATHODE-PLATE
D3 5 3 DX ; POSITIVE GRID CURRENT
R1 2 5 {RGI} ; POSITIVE GRID CURRENT
.MODEL DX D(IS=1N RS=1 CJO=10PF TT=1N)
.ENDS

.SUBCKT 6DR7_2 1 2 3 ; Plate Grid Cathode

PARAMS: CCG=5.5P CGP=8.5P CCP=1P RGI=2000

MU=9.2 KG1=225 KP=30 KVB=711 VCT=0.242 EX=1.148

Vp_MAX=400 Ip_MAX=140 Vg_step=5 Vg_start=0 Vg_count=10

Rp=4000 Vg_ac=55 P_max=9 Vg_qui=-48 Vp_qui=300

X_MIN=27 Y_MIN=13 X_SIZE=482 Y_SIZE=421 FSZ_X=1260 FSZ_Y=630 XYGrid=false

showLoadLine=n showIp=y isDHT=n isPP=n isAsymPP=n showDissipLimit=y

showIg1=n gridLevel2=n isInputSnapped=n

XYProjections=n harmonicPlot=n dissipPlot=n

*----------------------------------------------------------------------------------
E1 7 0 VALUE={V(1,3)/KP*LN(1+EXP(KP*(1/MU+(VCT+V(2,3))/SQRT(KVB+V(1,3)*V(1,3)))))}
RE1 7 0 1G ; TO AVOID FLOATING NODES
G1 1 3 VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))/KG1}
RCP 1 3 1G ; TO AVOID FLOATING NODES
C1 2 3 {CCG} ; CATHODE-GRID
C2 2 1 {CGP} ; GRID=PLATE
C3 1 3 {CCP} ; CATHODE-PLATE
D3 5 3 DX ; POSITIVE GRID CURRENT
R1 2 5 {RGI} ; POSITIVE GRID CURRENT
.MODEL DX D(IS=1N RS=1 CJO=10PF TT=1N)
.ENDS

jcalvarez · 2023-12-06 12:02 pm

@qiuchun63 Using the Class A sample in the datasheet I get a decent match for the high powered section, but not good for the low powered one. The anode current is expected to be around 1.4mA, but simulation shows 0.68mA.

qiuchun63 · 2023-12-06 12:16 pm

jcalvarez · 2023-12-06 12:35 pm

It seems that Multisim and LTSpice do not agree with each other

. I do not know LTSpice enough to understand the reason.

b_force · 2023-12-06 12:39 pm

There must be an error in the code that is not compatible with ltspice

qiuchun63 · 2023-12-06 2:19 pm

After I send the pasted code,the format becomes wrong by itself.

qiuchun63 · 2023-12-06 2:32 pm

The beninning part should be like this.
.SUBCKT 6DR7_1 1 2 3 ; Plate Grid Cathode
+ PARAMS: CCG=2.2P CGP=4.5P CCP=0.34P RGI=2000
+ MU=67.2 KG1=1300.05 KP=222842.88 KVB=5157.12 VCT=0.1801 EX=1.226
* Vp_MAX=400 Ip_MAX=14 Vg_step=1 Vg_start=0 Vg_count=5
* Rp=4000 Vg_ac=55 P_max=1.5 Vg_qui=-48 Vp_qui=300
* X_MIN=19 Y_MIN=9 X_SIZE=457 Y_SIZE=402 FSZ_X=1260 FSZ_Y=630 XYGrid=false
*showLoadLine=n showIp=y isDHT=n isPP=n isAsymPP=n showDissipLimit=y
*showIg1=n gridLevel2=n isInputSnapped=n
*XYProjections=n harmonicPlot=n dissipPlot=n

qiuchun63 · 2023-12-06 2:42 pm

This code is correct.

.SUBCKT 6DR7_1 1 2 3 ; Plate Grid Cathode
+ PARAMS: CCG=2.2P CGP=4.5P CCP=0.34P RGI=2000
+ MU=67.2 KG1=1300.05 KP=222842.88 KVB=5157.12 VCT=0.1801 EX=1.226
* Vp_MAX=400 Ip_MAX=14 Vg_step=1 Vg_start=0 Vg_count=5
* Rp=4000 Vg_ac=55 P_max=1.5 Vg_qui=-48 Vp_qui=300
* X_MIN=19 Y_MIN=9 X_SIZE=457 Y_SIZE=402 FSZ_X=1260 FSZ_Y=630 XYGrid=false
* showLoadLine=n showIp=y isDHT=n isPP=n isAsymPP=n showDissipLimit=y
* showIg1=n gridLevel2=n isInputSnapped=n
* XYProjections=n harmonicPlot=n dissipPlot=n
*----------------------------------------------------------------------------------
E1 7 0 VALUE={V(1,3)/KP*LN(1+EXP(KP*(1/MU+(VCT+V(2,3))/SQRT(KVB+V(1,3)*V(1,3)))))}
RE1 7 0 1G ; TO AVOID FLOATING NODES
G1 1 3 VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))/KG1}
RCP 1 3 1G ; TO AVOID FLOATING NODES
C1 2 3 {CCG} ; CATHODE-GRID
C2 2 1 {CGP} ; GRID=PLATE
C3 1 3 {CCP} ; CATHODE-PLATE
D3 5 3 DX ; POSITIVE GRID CURRENT
R1 2 5 {RGI} ; POSITIVE GRID CURRENT
.MODEL DX D(IS=1N RS=1 CJO=10PF TT=1N)
.ENDS

.SUBCKT 6DR7_2 1 2 3 ; Plate Grid Cathode
+ PARAMS: CCG=5.5P CGP=8.5P CCP=1P RGI=2000
+ MU=9.2 KG1=225 KP=30 KVB=711 VCT=0.242 EX=1.148
* Vp_MAX=400 Ip_MAX=140 Vg_step=5 Vg_start=0 Vg_count=10
* Rp=4000 Vg_ac=55 P_max=9 Vg_qui=-48 Vp_qui=300
* X_MIN=27 Y_MIN=13 X_SIZE=482 Y_SIZE=421 FSZ_X=1260 FSZ_Y=630 XYGrid=false
* showLoadLine=n showIp=y isDHT=n isPP=n isAsymPP=n showDissipLimit=y
* showIg1=n gridLevel2=n isInputSnapped=n
* XYProjections=n harmonicPlot=n dissipPlot=n
*----------------------------------------------------------------------------------
E1 7 0 VALUE={V(1,3)/KP*LN(1+EXP(KP*(1/MU+(VCT+V(2,3))/SQRT(KVB+V(1,3)*V(1,3)))))}
RE1 7 0 1G ; TO AVOID FLOATING NODES
G1 1 3 VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))/KG1}
RCP 1 3 1G ; TO AVOID FLOATING NODES
C1 2 3 {CCG} ; CATHODE-GRID
C2 2 1 {CGP} ; GRID=PLATE
C3 1 3 {CCP} ; CATHODE-PLATE
D3 5 3 DX ; POSITIVE GRID CURRENT
R1 2 5 {RGI} ; POSITIVE GRID CURRENT
.MODEL DX D(IS=1N RS=1 CJO=10PF TT=1N)
.ENDS

jcalvarez · 2023-12-06 3:32 pm

Yes, I manually corrected the text files on my side, but still the same discrepancy. Also tried the ones in
#3,752, no changes. Also tried changing LN for LOG, just in case (other models I got use LOG), nothing changed.

benchbaron · 2023-12-06 3:39 pm

RajkoM said:
For use Ayumi`s models in LTspice, replace all ^ with **
It is already known info on this forum.

This is pretty hopeless.......tried this and all I get is FE characters. Something´s jarred up, has to be made easier.
BB

jcalvarez · 2023-12-06 3:50 pm

There are no '^'s in the model. It executes properly, I do not see any errors in the log. It is just the operating point for the low power triode way off when I use LTSpice.
The tool used to create the model is paint_kit.jar, we have many, many working models here created with that tool.

AllenB · 2023-12-07 12:38 am

@qiuchun63 please do not press "Report" when you mean to post a reply. "Report" has a different meaning, it is intended to alert the moderation team.

qiuchun63 · 2023-12-07 12:55 am

Where can I find the code posting mode?

AllenB · 2023-12-07 1:13 am

qiuchun63 · 2023-12-07 1:20 am

Thank you, AllenB

qiuchun63 · 2023-12-07 7:28 am

6A10A model

Code:

**** 6AC10A ******************************************
* Created on 12/07/2023 15:17 using paint_kit.jar 3.1
* www.dmitrynizh.com/tubeparams_image.htm
* Plate Curves image file:
* Data source link:
*----------------------------------------------------------------------------------
.SUBCKT 6AC10A 1 2 3 ; Plate Grid Cathode
+ PARAMS: CCG=2.4P  CGP=1.3P CCP=0.22P RGI=2000
+ MU=102.82 KG1=285 KP=164 KVB=1.875 VCT=0.112 EX=1.372
* Vp_MAX=500 Ip_MAX=36 Vg_step=1 Vg_start=0 Vg_count=5
* Rp=4000 Vg_ac=55 P_max=40 Vg_qui=-48 Vp_qui=300
* X_MIN=24 Y_MIN=19 X_SIZE=656 Y_SIZE=456 FSZ_X=1260 FSZ_Y=630 XYGrid=false
* showLoadLine=y showIp=y isDHT=n isPP=n isAsymPP=n showDissipLimit=y
* showIg1=n gridLevel2=n isInputSnapped=n
* XYProjections=n harmonicPlot=n dissipPlot=n
*----------------------------------------------------------------------------------
E1 7 0 VALUE={V(1,3)/KP*LOG(1+EXP(KP*(1/MU+(VCT+V(2,3))/SQRT(KVB+V(1,3)*V(1,3)))))}
RE1 7 0 1G  ; TO AVOID FLOATING NODES
G1 1 3 VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))/KG1}
RCP 1 3 1G   ; TO AVOID FLOATING NODES
C1 2 3 {CCG} ; CATHODE-GRID
C2 2 1 {CGP} ; GRID=PLATE
C3 1 3 {CCP} ; CATHODE-PLATE
D3 5 3 DX ; POSITIVE GRID CURRENT
R1 2 5 {RGI} ; POSITIVE GRID CURRENT
.MODEL DX D(IS=1N RS=1 CJO=10PF TT=1N)
.ENDS

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