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Spice models (3f4) for tubes 8CG7 and 6112 triodes

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Robert Casey

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Jul 8, 2003, 4:27:03 PM7/8/03
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More spice models:

***************************************

*Vacuum Tube Triode (Audio freq.)
.SUBCKT X8CG7 1 3 4
B1 2 4 I=((URAMP((V(2,4)/20)+V(3,4)))^1.4)/801
C1 3 4 1.6E-12
C2 3 1 1.5E-12
C3 1 4 0.5E-12
R1 3 5 10E+3
D1 1 2 DX
D2 4 2 DX2
D3 5 4 DX
.MODEL DX D(IS=1.0E-12 RS=1.0)
.MODEL DX2 D(IS=1.0E-9 RS=1.0)
.ENDS X8CG7

*****************************************

*Vacuum Tube Triode 6111 triode
.SUBCKT X6112 1 3 4
B1 2 4 I=((URAMP((V(2,4)/40)+V(3,4)*1.77))^1.4)/900
C1 3 4 2.1E-12
C2 3 1 1.3E-12
C3 1 4 1.0E-12
R1 3 5 10E+3
D1 1 2 DX
D2 4 2 DX2
D3 5 4 DX
.MODEL DX D(IS=1.0E-12 RS=1.0)
.MODEL DX2 D(IS=1.0E-9 RS=1.0)
.ENDS X6112

********************************************

More at:
http://home.netcom.com/~wb2jia/tubes/spice.txt

Robert Casey

unread,
Jul 8, 2003, 5:00:43 PM7/8/03
to

> More spice models:
>
> ***************************************
>
>*Vacuum Tube Triode (Audio freq.)
>.SUBCKT X8CG7 1 3 4
>B1 2 4 I=((URAMP((V(2,4)/20)+V(3,4)))^1.4)/801
>C1 3 4 3.7E-12
>C2 3 1 2.4E-12
>C3 1 4 0.3E-12

>R1 3 5 10E+3
>D1 1 2 DX
>D2 4 2 DX2
>D3 5 4 DX
>.MODEL DX D(IS=1.0E-12 RS=1.0)
>.MODEL DX2 D(IS=1.0E-9 RS=1.0)
>.ENDS X8CG7
>
>*****************************************
>
>*Vacuum Tube Triode 6111 triode
>.SUBCKT X6112 1 3 4
>B1 2 4 I=((URAMP((V(2,4)/40)+V(3,4)*1.77))^1.4)/900
>C1 3 4 1.5E-12
>C2 3 1 2E-12
>C3 1 4 0.3E-12
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