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4th December 2012, 02:21 PM  #1 
diyAudio Member
Join Date: Dec 2011
Location: Barrio Garay,Almirante Brown, Buenos Aires, Argentina

LTSpice tube models
Hi all friend here!.
I want to know if any of you have the following tube models or know where can I find them. In the Norman Kohen they aren't and Google didn't give any answer. They are: ECF801  EC900  EF184  EF183 Many Thanks to all. Best Regards.
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LW1DSE 
4th December 2012, 03:58 PM  #2 
diyAudio Member
Join Date: Jul 2003
Location: Wayne, West Virginia

tubemodel_3.01_win.zip
EF184 would be 6EJ7 in the above zip. EC900/6HA5 * 6HA5 LTSpice model * Koren model (5 parameters): mean fit error 1.27016mA * Traced by Wayne Clay on 9/6/07 using Curve Captor v0.9 * from GE datasheet .subckt 6HA5 P G K Bp P K I= + (0.0007088605362m)*uramp(V(P,K)*ln(1.0+exp((0.0105 0076569)+ + (0.01050076569)*(16410.47684)*V(G,K)/sqrt((7.516756983k)+ + (V(P,K))**2)))/(0.01050076569))**(1.177167506) Cgp G P 0.56p ; 0.2p added Cgk G K 5p ; 0.7p added Cpk P K 3.1p ; 0.2p added .ends 6HA5 Last edited by cogsncogs; 4th December 2012 at 04:03 PM. 
4th December 2012, 04:26 PM  #4 
diyAudio Member
Join Date: Jul 2003
Location: Wayne, West Virginia

Here's more 6ha5 models:
looking for spice model of 6HA5 or similar tubes 
4th December 2012, 04:32 PM  #5 
diyAudio Member
Join Date: Jul 2003
Location: Wayne, West Virginia

6HM5
Code:
* 6HM5_k8 LTSpice model .subckt 6HM5_k8 P G K Bp P K I=(0.001154846006m)*uramp(V(P,K)*ln(1.0+(0.0008415623491)+exp((0.05049252985)+(0.05049252985)*((5446.000628)+(178663.8165m)*V(G,K))*V(G,K)/sqrt((0.2140185688)**2+(V(P,K)(162.56846))**2)))/(0.05049252985))**(1.356125726) .ends 6HM5_k8 Code:
* 6HM5 LTSpice model * Koren model (5 parameters): mean fit error 1.20978mA * Traced by Wayne Clay on 9/907 using Curve Captor v0.9 * from GE datasheet .subckt 6HM5k5 P G K Bp P K I= + (0.0005835219273m)*uramp(V(P,K)*ln(1.0+exp((0.005618954395)+ + (0.005618954395)*(31322.45425)*V(G,K)/sqrt((8.885069314k)+ + (V(P,K))**2)))/(0.005618954395))**(1.124019828) Cgp G P 0.54p ; 0.2p added Cgk G K 5.2p ; 0.7p added Cpk P K 3.2p ; 0.2p added .ends 6HM5k5 
4th December 2012, 04:35 PM  #6 
diyAudio Member
Join Date: Dec 2011
Location: Barrio Garay,Almirante Brown, Buenos Aires, Argentina

Ok, thanks again!!. Do you know any model for pentagrid tubes? (for make a audio compressor/expander) such as a 6BE6,6CS6, ECH83? Hot to manage two input signals? And for a 6BN6??? (very difficult I believe)
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LW1DSE 
4th December 2012, 05:14 PM  #7 
diyAudio Member
Join Date: Jul 2003
Location: Wayne, West Virginia

I don't have any good ones for those tubes. Here's 6BE6 and 6CS6 models that use an opamp symbol. To use 3f4 in LTSpice you may have to change ^ to **.
Code:
*Vacuum Tube pentagrid (sharp cutoff) .SUBCKT X6CS6close G 3 S K A *model written to use opamp symbol +in=g1,in=g3, +supply=g2g4, supply=kg5, out=plate *work in progress, not final * Calculate contribution to cathode current * *the number at the right end determines sharpness of knee Bat at 0 V=0.636*ATAN(V(A,K)/8) *the URAMP(V(S,K)/# mostly determines peak plate current, grid line spacing nearly constant *the number at the right end determines slope of grid lines (plate resistance) Bgs gs 0 V=URAMP(V(S,K)*1.6164+V(G,K)*24.75+V(A,K)/9000) Bgss gss 0 V=URAMP(V(S,K)*0.0005+V(3,K)*0.0075+V(A,K)/9000) *the exponent sets the linearity of grid line spacing, and big impact on peak plate currrent Bgs2 gs2 0 V=V(gs)^1.5 Bgs3 gs3 0 V=V(gss)^1.5 Bcath cc 0 V=V(gs2)*V(at) Ban an 0 V=V(gs2)*V(at)*(V(gs3)) * * Calculate anode current, grid line spacing adjust and peak plate current * Ba A K I=0.345E3*V(an) * * Calculate screen current * Bscrn sc 0 V=V(gs2)*(1.0V(at)) Bs S K I=(URAMP(0.64E3*V(sc)(1.45E3*(V(an)))))*0.29*(V(at)) * * Grid current (approximation  does not model low va/vs) * Bg G K I=(URAMP(V(G,K)+1)^1.5)*50E6 * * Capacitances * Cg1 G K 5.5p Cak A K 7.5p Cg3 3 S 7p Cg1g3 G 3 0.36p Cg1a G A 0.07p .ENDS X6CS6close ***************************** Code:
*Vacuum Tube pentagrid (g3 remote cutoff) .SUBCKT X6BE6close G 3 S K A *model written to use opamp symbol +in=g1,in=g3, +supply=g2g4, supply=kg5, out=plate *work in progress, not final * Calculate contribution to cathode current * *the number at the right end determines sharpness of knee Bat at 0 V=0.636*ATAN(V(A,K)/8) *the URAMP(V(S,K)/# mostly determines peak plate current, grid line spacing nearly constant *the number at the right end determines slope of grid lines (plate resistance) Bgs gs 0 V=URAMP(V(S,K)*1.6164+V(G,K)*24.75+V(A,K)/9000) Bgss gss 0 V=URAMP(V(S,K)*0.0005+V(3,K)*0.0045+V(A,K)/9000) *the exponent sets the linearity of grid line spacing, and big impact on peak plate currrent Bgs2 gs2 0 V=V(gs)^1.5 Bgs3 gs3 0 V=V(gss)^2.7 Bcath cc 0 V=V(gs2)*V(at) Ban an 0 V=V(gs2)*V(at)*(V(gs3)) * * Calculate anode current, grid line spacing adjust and peak plate current * Ba A K I=0.345E2*V(an) * * Calculate screen current * Bscrn sc 0 V=V(gs2)*(1.0V(at)) Bs S K I=(URAMP(2.34E4*V(sc)(0.95E2*(V(an)))))*0.29*(V(at)) * * Grid current (approximation  does not model low va/vs) * Bg G K I=(URAMP(V(G,K)+1)^1.5)*50E6 * * Capacitances * Cg1 G K 3p Cak A K 8p Cg3 3 S 7p Cg1g3 G 3 0.15p Cg1a G A 0.1p .ENDS X6BE6close *************************************** 
6th December 2012, 05:06 PM  #10 
diyAudio Member
Join Date: Jul 2003
Location: Wayne, West Virginia

Hi Osvaldo, try this in LTSpice. It has the 6HM5 model I posted in this thread. When you use the model be sure the name of the subckt matches the name/value of the component and the inc file you place on the schematic.
Wayne 
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