Vacuum Tube SPICE Models

zintolo · 2025-02-06 7:58 pm

I haven’t found ELL80 models. Can someone post them please?

https://www.robkalmeijer.nl/techniek/electronica/datasheets/e/ell80.pdf

Sorento · 2025-02-07 5:54 pm

maybe because ELL80 is 2 x EL95 in a single envelope ?

qiuchun63 · 2025-02-08 3:25 am

ELL80 SPICE Models.

Code:

**** ELL80 ******************************************
* Created on 02/08/2025 11:22 using paint_kip.jar
* www.dmitrynizh.com/tubeparams_image.htm
* Plate Curves image file: ELL80.jpg
* Data source link: <plate curves URL>
*----------------------------------------------------------------------------------
.SUBCKT ELL80 P G2 G K ; LTSpice tetrode.asy pinout
* .SUBCKT ELL80 P G K G2 ; Koren Pentode Pspice pinout
+ PARAMS: MU=19 KG1=1188 KP=102.11 KVB=12.24 VCT=0.278 EX=1.4 KG2=4200 KNEE=11.76 KVC=2.57
+ KLAM=8.6E-7 KLAMG=9.9E-5   KNK=-0.0983 KNG=0.00606 KNPL=85.5 KNSL=11.22 KNPR=85.5 KNSR=28.42
+ CCG=7P CGP=4.5P CCP=4.2P RGI=2000.0
* Vp_MAX=500 Ip_MAX=100 Vg_step=2 Vg_start=0 Vg_count=8
* X_MIN=103 Y_MIN=57 X_SIZE=620 Y_SIZE=494 FSZ_X=1381 FSZ_Y=720 XYGrid=false
* Rp=1400 Vg_ac=20 P_max=6 Vg_qui=-7 Vp_qui=300
* showLoadLine=n showIp=y isDHP=n isPP=n isAsymPP=n isUL=n showDissipLimit=y
* showIg1=n isInputSnapped=y addLocalNFB=n
* XYProjections=n harmonicPlot=y dissipPlot=n
* UL=0.43 EG2=250 gridLevel2=n addKink=y isTanhKnee=n advSigmoid=n
*----------------------------------------------------------------------------------
RE1  7 0  1G    ; DUMMY SO NODE 7 HAS 2 CONNECTIONS
E1   7 0  VALUE=  ; E1 BREAKS UP LONG EQUATION FOR G1.
+{V(G2,K)/KP*LOG(1+EXP((1/MU+(VCT+V(G,K))/SQRT(KVB+V(G2,K)*V(G2,K)))*KP))}
RE2  6 0  1G    ; DUMMY SO NODE 6 HAS 2 CONNECTIONS
E2  6 0  VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))} ; Kg1 times KIT current
RE21 21 0 1
E21  21 0 VALUE={V(6)/KG1*ATAN(V(P,K)/KNEE)} ; Ip with knee but no slope and no kink
RE22 22 0 1 ; E22: kink curr deviation for plate
E22  22 0 VALUE={V(21)*LIMIT(KNK-V(G,K)*KNG,0,0.3)*(-ATAN((V(P,K)-KNPL)/KNSL)+ATAN((V(P,K)-KNPR)/KNSR))}
G1   P  K  VALUE={V(21)*(1+KLAMG*V(P,K))+KLAM*V(P,K) + V(22)}
* Alexander Gurskii screen current, see audioXpress 2/2011, with slope and kink added
RE43 43 K 1G ; Dummy
E43  43 G2 VALUE={0} ; Dummy
G2   43 K  VALUE={V(6)/KG2*(KVC-ATAN(V(P,K)/KNEE))/(1+KLAMG*V(P,K))-V(22)}
RCP  P K  1G     ; FOR CONVERGENCE
C1   K G  {CCG}  ; CATHODE-GRID 1
C2   G P  {CGP}  ; GRID 1-PLATE
C3   K P  {CCP}  ; CATHODE-PLATE
R1   G 5  {RGI}  ; FOR GRID CURRENT   
D3   5 K  DX     ; FOR GRID CURRENT }
.MODEL DX D(IS=1N RS=1 CJO=10PF TT=1N)
.ENDS

Yasioo · 2025-02-12 10:14 am

Hi guys I'm looking for 250th tube char (not from pdf) some have ?

Thanks

qiuchun63 · 2025-02-13 3:37 am

The china 6c12 SPICE models.

Code:

**** 6C12 ******************************************
* Created on 02/13/2025 11:31 using paint_kit.jar 3.1
* www.dmitrynizh.com/tubeparams_image.htm
* Plate Curves image file: *.jpg
* Data source link:
*----------------------------------------------------------------------------------
.SUBCKT 6C12 1 2 3 ; Plate Grid Cathode
+ PARAMS: CCG=3.7P  CGP=0.08P CCP=1.5P RGI=2000
+ MU=74.59 KG1=172.5 KP=308 KVB=89.62 VCT=0.198 EX=1.484
* Vp_MAX=200 Ip_MAX=30 Vg_step=0.5 Vg_start=0 Vg_count=7
* Rp=4000 Vg_ac=55 P_max=2 Vg_qui=-48 Vp_qui=300
* X_MIN=65 Y_MIN=171 X_SIZE=425 Y_SIZE=244 FSZ_X=1260 FSZ_Y=630 XYGrid=true
* 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*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

qiuchun63 · 2025-02-17 3:07 am

6EM7 SPICE models.

Code:

**** 6EM7_1 ******************************************
* Created on 02/17/2025 10:23 using paint_kit.jar 3.1
* www.dmitrynizh.com/tubeparams_image.htm
* Plate Curves image file: 6EM7.jpg
* Data source link:
*----------------------------------------------------------------------------------
.SUBCKT 6EM7_1 1 2 3 ; Plate Grid Cathode
+ PARAMS: CCG=2.2P  CGP=4.8P CCP=0.6P RGI=2000
+ MU=63.84 KG1=1200 KP=1184 KVB=5688 VCT=3.955E-5 EX=1.218
* Vp_MAX=400 Ip_MAX=14 Vg_step=1 Vg_start=0 Vg_count=7
* Rp=4000 Vg_ac=55 P_max=1.5 Vg_qui=-48 Vp_qui=300
* X_MIN=51 Y_MIN=38 X_SIZE=699 Y_SIZE=595 FSZ_X=1292 FSZ_Y=754 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*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

**** 6EM7_2 ** Advanced Grid Current **********************************
* Created on 02/17/2025 11:02 using paint_kit.jar 3.1
* www.dmitrynizh.com/tubeparams_image.htm
* Plate Curves image file: 6EM7_2.jpg
* Data source link:
*----------------------------------------------------------------------------------
.SUBCKT TRIODE_6EM7_2 1 2 3 ; Plate Grid Cathode
+ PARAMS: CCG=7P  CGP=10P CCP=1.8P
+ MU=6.216 KG1=255 KP=32 KVB=1056 VCT=0.736 EX=1.008
+ VGOFF=-7.44 IGA=5E-4 IGB=0.306 IGC=1.94 IGEX=1.96
* Vp_MAX=400 Ip_MAX=140 Vg_step=10 Vg_start=0 Vg_count=8
* Rp=4000 Vg_ac=55 P_max=10 Vg_qui=-48 Vp_qui=300
* X_MIN=41 Y_MIN=68 X_SIZE=825 Y_SIZE=720 FSZ_X=1376 FSZ_Y=877 XYGrid=false
* showLoadLine=n showIp=y isDHT=n isPP=n isAsymPP=n showDissipLimit=y
* showIg1=n gridLevel2=y 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
RE2 2 0 1G
EGC 8 0 VALUE={V(2,3)-VGOFF} ; POSITIVE GRID THRESHOLD
GG 2 3 VALUE={(IGA+IGB/(IGC+V(1,3)))*(MU/KG1)*(PWR(V(8),IGEX)+PWRS(V(8),IGEX))}
.ENDS

mrpunkk · 2025-03-01 10:53 pm

Hi!!
someone have a 6c6 and 2a3 really exact model??
I want to compare with the ones I have.
thanx a lot

jackinnj · 2025-03-06 6:21 pm

Here's a link to a modeler who has worked on pencil tubes, thyraton, acorn tubes, tuning indicator tubes, etc: Zabb Casa https://fotoelektronika.com/spice-models/

Also neon bulb model, LM3914, LM3915 etc

Adrian Immler · 2025-03-07 6:09 am

Cool stuff!
Thanks for the link, jackinnj!

qiuchun63 · 2025-03-25 6:20 am

CX_301A SPICE Models.

Code:

**** CX_301A ******************************************
* Created on 03/25/2025 12:52 using paint_kit.jar 3.1
* www.dmitrynizh.com/tubeparams_image.htm
* Plate Curves image file: CX-301A.jpg
* Data source link:
*----------------------------------------------------------------------------------
.SUBCKT TRIODE_CX_301A 1 2 3 ; Plate Grid Cathode
+ PARAMS: CCG=3.1P  CGP=8.1P CCP=2.2P RGI=2000
+ MU=8.652 KG1=31200 KP=50 KVB=0.947 VCT=6.312E-4 EX=1.988
* Vp_MAX=240 Ip_MAX=7 Vg_step=1.5 Vg_start=0 Vg_count=13
* Rp=4000 Vg_ac=55 P_max=1.5 Vg_qui=-48 Vp_qui=300
* X_MIN=114 Y_MIN=150 X_SIZE=1013 Y_SIZE=595 FSZ_X=1851 FSZ_Y=857 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*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

EL8 · 2025-03-30 2:36 am

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