how to make Pspice model with the txt file.

I also want to know how to do this. I am trying to implement these parts I found online but I can't find an up to date tutorial to show me how to do this in orcad v 17.2

********************************************************************** * Duncan Amplfication Generic Triode Model (PSpice Implementation) * Copyright (C)1997-2004 Duncan Amplfication * Unauthorised Commercial use prohibited * Please refer to documentation at  * * $MODEL_VERSION$ 4.1 * $AUTOGENERATED$ 23/01/2004 20:24:26  ********************************************************************** * CURRENT MODEL SET AND VERSIONS: * * 2A3 [3.2, 09/08/2003 ] * 3CX300 [3.1, 05/01/1998 ] * SV6AS7 [3.0, 30/12/1997 ] * 6BM8 / ECL82 [3.0, 31/12/1997 ] * 6DJ8 / ECC88 [3.0, 15/08/1998 ] * 6N1P [3.0, 25/01/1998 ] * 6SN7GTB [3.1, 05/01/1998 ] * 12AT7 / ECC81 [3.1, 05/01/1998 ] * 12AU7 / ECC82 [3.2, 01/05/2002 ] * 12AX7 / ECC83 [3.0, 30/12/1997 ] * 76 [3.0, 12/02/1998 ] * 300B [3.1, 06/01/1998 ] * SV572-3 [3.0, 31/12/1997 ] * SV572-10 [3.0, 20/06/1998 ] * 5751 [3.0, 15/02/1998 ] ********************************************************************** * CORE MODEL VERSION HISTORY: * * 1.0 23/09/1997 Initial model * 1.1 19/11/1997 Model altered for 1 gig resistors between each node and ground * 2.0 18/12/1997 Two new parameters, ERP and ERI added * 3.0 30/12/1997 New parameter added, RAS * 3.1 05/01/1998 ERI parameter removed * 3.2 06/01/1998 Fix errors in Pspice model * 3.3 13/01/1998 Fixed errors with CDO parameter * 3.4 25/01/1998 Errors with heater versions using ERI fixed * 4.1 23/01/2004 Corrections to Pspice syntax for LTSpice ********************************************************************** .SUBCKT TRIODE A G K H1 H2 +PARAMS: RCO=1.6 RHO=10.5 HTV=6.3 HWU=10.5 + LIP=1 LIF=3.7E-3 RAF=18E-3 RAS=1 CDO=0 RAP=4E-3 + ERP=1.5  + MU0=17.3 MUR=19E-3 EMC=9.6E-6 GCO=0 GCF=213E-6 + CGA=3.9p CGK=2.4p CAK=0.7p

************************************************************************ * * Heater model * * Can be operated from AC or DC power sources. * NB: When operating from DC power sources, "Skip initial transient * solution" must be checked, to make use of this model. * * PARAMETERS * * RCO Heater resistance cold (ohms) * RHO Heater resistance hot (ohms) * HTV Normal heater voltage (V) * HWU Heater time to warm up to 90% of emission (seconds) * ************************************************************************

Rcool H1 HA {RCO} Rload HA HB 1M Esens HD 0 VALUE {V(HA,HB)*1000} Epwr HE 0 VALUE {V(H1,H2)*V(HD)/(PWR({HTV},2)/{RHO})} RH1 HE HF 91k CH1 HF 0 {HWU/1E6} EH2 HG 0 VALUE {V(HF)} RH2 HG HH 270k CH2 HH 0 {HWU/1E6} EH3 HJ 0 VALUE {LIMIT(V(HH)-0.75,0,1E6)*4} RH3 HJ HK 91k CH3 HK 0 {HWU/1E6} Ghot HB H2 VALUE {(1/(V(HG)+0.001))/({RHO}-{RCO})*V(HB,H2)}

************************************************************************ * * Anode/grid model * * Models reduction in mu at large negative grid voltages * Models change in Ra with negative grid voltages * Models limit in Ia with high +Vg and low Va * * PARAMETERS * * LIP Conduction limit exponent * LIF Conduction limit factor * CDO Conduction offset * RAF Anode resistance factor for neg grid voltages * RAP Anode resistance factor for positive grid voltages * ERP Emission power * MU0 Mu between grid and anode at Vg=0 * MUR Mu reduction factor for large negative grid voltages * EMC Emission coefficient * GCO Grid current offset in volts * GCF Grid current scale factor * ************************************************************************

Elim LI 0 VALUE {PWR(LIMIT(V(A,K),0,1E6),{LIP})*{LIF}} Egg GG 0 VALUE {V(G,K)-{CDO}} Erpf RP 0 VALUE {1-PWR(LIMIT(-V(GG)*{RAF},0,0.999),{RAS})+LIMIT(V(GG),0,1E6)*{RAP}} Egr GR 0 VALUE {LIMIT(V(GG),0,1E6)+LIMIT((V(GG))*(1+V(GG)*{MUR}),0,-1E6)} Eem EM 0 VALUE {LIMIT(V(A,K)+V(GR)*{MU0},0,1E6)} Eep EP 0 VALUE {PWR(V(EM),ERP)*{EMC}*V(RP)} Eel EL 0 VALUE {LIMIT(V(EP),0,V(LI))} Eld LD 0 VALUE {LIMIT(V(EP)-V(LI),0,1E6)} Ga A K VALUE {V(HK)*V(EL)}

************************************************************************ * * Grid current model * * Models grid current, along with rise in grid current at low Va * ************************************************************************ Egf GF 0 VALUE {PWR(LIMIT(V(G,K)-{GCO},0,1E6),1.5)*{GCF}} Gg G K VALUE {(V(GF)+V(LD))*V(HK)}

* * Capacitances and anti-float resistors * CM1 G K {CGK} CM2 A G {CGA} CM3 A K {CAK} RF1 A 0 1000MEG RF2 G 0 1000MEG RF3 K 0 1000MEG

.ENDS

.SUBCKT TRIODENH A G K +PARAMS: LIP=1 LIF=3.7E-3 RAF=18E-3 RAS=1 CDO=0 RAP=4E-3 + ERP=1.5 + MU0=17.3 MUR=19E-3 EMC=9.6E-6 GCO=0 GCF=213E-6 + CGA=3.9p CGK=2.4p CAK=0.7p

************************************************************************ * * Anode/grid model * * Models reduction in mu at large negative grid voltages * Models change in Ra with negative grid voltages * Models limit in Ia with high +Vg and low Va * * PARAMETERS * * LIP Conduction limit exponent * LIF Conduction limit factor * CDO Conduction offset * RAF Anode resistance factor for neg grid voltages * RAP Anode resistance factor for positive grid voltages * ERP Emission power * MU0 Mu between grid and anode at Vg=0 * MUR Mu reduction factor for large negative grid voltages * EMC Emission coefficient * GCO Grid current offset in volts * GCF Grid current scale factor * ************************************************************************

Elim LI 0 VALUE {PWR(LIMIT(V(A,K),0,1E6),{LIP})*{LIF}} Egg GG 0 VALUE {V(G,K)-{CDO}} Erpf RP 0 VALUE {1-PWR(LIMIT(-V(GG)*{RAF},0,0.999),{RAS})+LIMIT(V(GG),0,1E6)*{RAP}} Egr GR 0 VALUE {LIMIT(V(GG),0,1E6)+LIMIT((V(GG))*(1+V(GG)*{MUR}),0,-1E6)} Eem EM 0 VALUE {LIMIT(V(A,K)+V(GR)*{MU0},0,1E6)} Eep EP 0 VALUE {PWR(V(EM),ERP)*{EMC}*V(RP)} Eel EL 0 VALUE {LIMIT(V(EP),0,V(LI))} Eld LD 0 VALUE {LIMIT(V(EP)-V(LI),0,1E6)} Ga A K VALUE {V(EL)}

************************************************************************ * * Grid current model * * Models grid current, along with rise in grid current at low Va * ************************************************************************ Egf GF 0 VALUE {PWR(LIMIT(V(G,K)-{GCO},0,1E6),1.5)*{GCF}} Gg G K VALUE {(V(GF)+V(LD))}

* * Capacitances and anti-float resistors * CM1 G K {CGK} CM2 A G {CGA} CM3 A K {CAK} RF1 A 0 1000MEG RF2 G 0 1000MEG RF3 K 0 1000MEG

.ENDS ********************************************************************** * GENERIC: 2A3 * MODEL: NH2A3 * NOTES: No heater model (virtual cathode) ********************************************************************** .SUBCKT NH2A3 A G K XV1 A G K TRIODENH +PARAMS: LIP= 1.5 LIF= 0.003 RAF= 1.92357959289845E-02 RAS= 5.31355720568454E-02 CDO= 0  + RAP= 0.005 ERP= 1.55  + MU0= 4.2 MUR= 0.001023047 EMC= 0.0000868  + GCO=-0.2 GCF= 0.00001  + CGA=1.65E-11 CGK=7.50E-12 CAK=5.50E-12 .ENDS

********************************************************************** * GENERIC: 3CX300 * MODEL: NH3CX300 * NOTES: No heater model ********************************************************************** .SUBCKT NH3CX300 A G K XV1 A G K TRIODENH +PARAMS: LIP= 1.5 LIF= 10 RAF= 0.00536 RAS= 1 CDO= 0  + RAP= 0.005 ERP= 1.25  + MU0= 8.321 MUR= 0.0012 EMC= 0.000533  + GCO= 0 GCF= 0.0001  + CGA=1.00E-11 CGK=2.50E-11 CAK=1.00E-12 .ENDS

********************************************************************** * GENERIC: SV6AS7 * MODEL: NHSV6AS7 * NOTES: No heater model ********************************************************************** .SUBCKT NHSV6AS7 A G K XV1 A G K TRIODENH +PARAMS: LIP= 1 LIF= 0.01 RAF= 0.0058 RAS= 0.7 CDO= 0  + RAP= 0.035 ERP= 1.5  + MU0= 2.05 MUR= 0.0017 EMC= 0.0005  + GCO= 0 GCF= 0  + CGA=1.10E-11 CGK=8.00E-12 CAK=3.00E-12 .ENDS

********************************************************************** * GENERIC: 6BM8 / ECL82 * MODEL: NH6BM8 * NOTES: No heater or grid model ********************************************************************** .SUBCKT NH6BM8 A G K XV1 A G K TRIODENH +PARAMS: LIP= 1.5 LIF= 10 RAF= 0.030667 RAS= 5 CDO=-0.5  + RAP= 0.587 ERP= 1.5  + MU0= 50 MUR= 0.035 EMC= 0.00000256  + GCO= 0 GCF= 0  + CGA=4.00E-12 CGK=2.70E-12 CAK=4.00E-12 .ENDS

********************************************************************** * GENERIC: 6DJ8 / ECC88 * MODEL: NH6DJ8 * NOTES: No heater or grid current model ********************************************************************** .SUBCKT NH6DJ8 A G K XV1 A G K TRIODENH +PARAMS: LIP= 1.5 LIF= 10 RAF= 0.09 RAS= 0.2 CDO= 0  + RAP= 0 ERP= 1.35  + MU0= 33 MUR= 0.02 EMC= 0.0000795  + GCO=-0.2 GCF= 0  + CGA=1.40E-12 CGK=3.30E-12 CAK=1.80E-12 .ENDS

********************************************************************** * GENERIC: 6N1P * MODEL: NH6N1P * NOTES: No heater/grid model ********************************************************************** .SUBCKT NH6N1P A G K XV1 A G K TRIODENH +PARAMS: LIP= 1.5 LIF= 10 RAF= 0.01 RAS= 1 CDO= 0  + RAP= 0 ERP= 1.6  + MU0= 37.5 MUR= 0.01 EMC= 0.000005  + GCO= 0 GCF= 0  + CGA=1.60E-12 CGK=3.20E-12 CAK=1.50E-12 .ENDS

********************************************************************** * GENERIC: 6SN7GTB * MODEL: 6SN7GTB * NOTES: Has heater model (one half of heater) ********************************************************************** .SUBCKT 6SN7GTB A G K H1 H2 XV1 A G K H1 H2 TRIODE +PARAMS: RCO= 3.2 RHO= 21 HTV= 6.3 HWU= 10.5  + LIP= 1 LIF= 0.0037 RAF= 0.02 RAS= 2 CDO= 0  + RAP= 0.002 ERP= 1.4  + MU0= 19.2642 MUR= 0.006167 EMC= 0.0000189  + GCO= 0 GCF= 0.000213  + CGA=3.90E-12 CGK=2.40E-12 CAK=7.00E-13 .ENDS

********************************************************************** * GENERIC: 6SN7GTB * MODEL: NH6SN7GTB * NOTES: No heater model ********************************************************************** .SUBCKT NH6SN7GTB A G K XV1 A G K TRIODENH +PARAMS: LIP= 1 LIF= 0.0037 RAF= 0.02 RAS= 2 CDO= 0  + RAP= 0.002 ERP= 1.4  + MU0= 19.2642 MUR= 0.006167 EMC= 0.0000189  + GCO= 0 GCF= 0.000213  + CGA=3.90E-12 CGK=2.40E-12 CAK=7.00E-13 .ENDS

********************************************************************** * GENERIC: 12AT7 / ECC81 * MODEL: 12AT7 * NOTES: Heater model for one half of heater (6.3V) ********************************************************************** .SUBCKT 12AT7 A G K H1 H2 XV1 A G K H1 H2 TRIODE +PARAMS: RCO= 6.2 RHO= 42 HTV= 6.3 HWU= 10.5  + LIP= 1 LIF= 0.0037 RAF= 0.09869 RAS= 1 CDO=-0.5  + RAP= 0.1 ERP= 1.4  + MU0= 45.093 MUR= 0.012937 EMC= 0.00000863  + GCO=-0.5 GCF= 0.00012  + CGA=1.60E-12 CGK=2.30E-12 CAK=4.00E-13 .ENDS

********************************************************************** * GENERIC: 12AT7 / ECC81 * MODEL: NH12AT7 * NOTES: No heater model ********************************************************************** .SUBCKT NH12AT7 A G K XV1 A G K TRIODENH +PARAMS: LIP= 1 LIF= 0.0037 RAF= 0.09869 RAS= 1 CDO=-0.5  + RAP= 0.1 ERP= 1.4  + MU0= 45.093 MUR= 0.012937 EMC= 0.00000863  + GCO=-0.5 GCF= 0.00012  + CGA=1.60E-12 CGK=2.30E-12 CAK=4.00E-13 .ENDS

********************************************************************** * GENERIC: 12AU7 / ECC82 * MODEL: 12AU7 * NOTES: Heater model for one half of heater (6.3V) ********************************************************************** .SUBCKT 12AU7 A G K H1 H2 XV1 A G K H1 H2 TRIODE +PARAMS: RCO= 6.2 RHO= 42 HTV= 6.3 HWU= 10.5  + LIP= 1 LIF= 0.0037 RAF= 0.024778659 RAS= 2.040491735 CDO= 0  + RAP= 0.18 ERP= 1.35  + MU0= 14.27427 MUR= 0.005857103 EMC= 0.0000236  + GCO= 0 GCF= 0.00012  + CGA=1.60E-12 CGK=1.80E-12 CAK=4.50E-13 .ENDS

********************************************************************** * GENERIC: 12AU7 / ECC82 * MODEL: NH12AU7 * NOTES: No heater model ********************************************************************** .SUBCKT NH12AU7 A G K XV1 A G K TRIODENH +PARAMS: LIP= 1 LIF= 0.0037 RAF= 0.000001 RAS= 2.065382774 CDO= 0  + RAP= 0.18 ERP= 1.4  + MU0= 17.08958652 MUR= 0.010938375 EMC= 0.0000183  + GCO= 0 GCF= 0.00012  + CGA=1.60E-12 CGK=1.80E-12 CAK=4.50E-13 .ENDS

********************************************************************** * GENERIC: 12AX7 / ECC83 * MODEL: 12AX7 * NOTES: Heater model for one half of heater (6.3V) ********************************************************************** .SUBCKT 12AX7 A G K H1 H2 XV1 A G K H1 H2 TRIODE +PARAMS: RCO= 6.2 RHO= 42 HTV= 6.3 HWU= 10.5  + LIP= 1.5 LIF= 0.000016 RAF= 0.076498 RAS= 1 CDO=-0.53056  + RAP= 0.18 ERP= 1.5  + MU0= 87.302 MUR=-0.013621 EMC= 0.00000111  + GCO=-0.2 GCF= 0.00001  + CGA=3.90E-12 CGK=2.40E-12 CAK=7.00E-13 .ENDS

********************************************************************** * GENERIC: 12AX7 / ECC83 * MODEL: NH12AX7 * NOTES: No heater model ********************************************************************** .SUBCKT NH12AX7 A G K XV1 A G K TRIODENH +PARAMS: LIP= 1.5 LIF= 0.000016 RAF= 0.076498 RAS= 1 CDO=-0.53056  + RAP= 0.18 ERP= 1.5  + MU0= 87.302 MUR=-0.013621 EMC= 0.00000111  + GCO=-0.2 GCF= 0.00001  + CGA=3.90E-12 CGK=2.40E-12 CAK=7.00E-13 .ENDS

********************************************************************** * GENERIC: 76 * MODEL: NH76 * NOTES: No heater/grid model ********************************************************************** .SUBCKT NH76 A G K XV1 A G K TRIODENH +PARAMS: LIP= 1 LIF= 10 RAF= 0.015 RAS= 1.8 CDO= 0  + RAP= 0 ERP= 1.6  + MU0= 12.8 MUR= 0.001 EMC= 0.000008  + GCO= 0 GCF= 0  + CGA=2.80E-12 CGK=3.50E-12 CAK=2.50E-12 .ENDS

********************************************************************** * GENERIC: 300B * MODEL: NH300B * NOTES: No heater/grid model (virtual cathode) ********************************************************************** .SUBCKT NH300B A G K XV1 A G K TRIODENH +PARAMS: LIP= 1 LIF= 10 RAF= 0.00311 RAS= 1.013608 CDO= 0  + RAP= 0 ERP= 1.5  + MU0= 3.7992 MUR= 0.000362 EMC= 0.000116  + GCO= 0 GCF= 0  + CGA=1.50E-11 CGK=9.00E-12 CAK=4.30E-12 .ENDS

********************************************************************** * GENERIC: SV572-3 * MODEL: SV5723 * NOTES: No heater model (virtual cathode) ********************************************************************** .SUBCKT SV5723 A G K XV1 A G K TRIODENH +PARAMS: LIP= 1 LIF= 0.0018 RAF= 0.0012 RAS= 0.5 CDO= 0  + RAP= 0 ERP= 1.4  + MU0= 3.79928 MUR= 0.0002 EMC= 0.0000425  + GCO= 0 GCF= 0.0000349  + CGA=4.00E-12 CGK=4.00E-12 CAK=1.00E-12 .ENDS

********************************************************************** * GENERIC: SV572-10 * MODEL: SV57210 * NOTES: This model is not accurate for Vg >= +60V ********************************************************************** .SUBCKT SV57210 A G K XV1 A G K TRIODENH +PARAMS: LIP= 1.4 LIF= 0.0008 RAF= 0.001 RAS= 1 CDO= 0  + RAP=-0.00117 ERP= 1.38  + MU0= 10 MUR= 0.0001 EMC= 0.0000272  + GCO=-0.2 GCF= 0.0003  + CGA=5.00E-12 CGK=6.40E-12 CAK=1.00E-12 .ENDS

********************************************************************** * GENERIC: 5751 * MODEL: NH5751 * NOTES: No heater model ********************************************************************** .SUBCKT NH5751 A G K XV1 A G K TRIODENH +PARAMS: LIP= 1.5 LIF= 0.000016 RAF= 0.075772 RAS= 1 CDO=-0.53056  + RAP= 0.131285 ERP= 1.5  + MU0= 62.94685 MUR=-0.0111 EMC= 0.00000142  + GCO=-0.2 GCF= 0.00001  + CGA=1.40E-12 CGK=1.40E-12 CAK=4.50E-13 .ENDS

I'll leave it to somebody on these forums to respond - I'm merely commenting to the poster as a moderator (in other forums). These last two posts got flagged as potential spam because of repeated text which is often a signature of spam - which is why they got held up.

I'll leave it to somebody on these forums to respond - I'm merely commenting to the poster as a moderator (in other forums). These last two posts got flagged as potential spam because of repeated text which is often a signature of spam - which is why they got held up.