Hi All:
I'm working on a new vacuum tube preamp design. I want to use the Ayumi 12AY7 for my first stage.
I have been using the 12AX7 in simulations because I can't seem to figure out how to import the Ayumi
model to work. Here is the stock Ayumi model. Any help much appreciated:
*
* Generic triode model: 12AY7
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Sat Mar 8 22:41:10 2008
* Plate
* | Grid
* | | Cathode
* | | |
.SUBCKT 12AY7 A G K
BGG GG 0 V=V(G,K)+0.71171435
BM1 M1 0 V=(0.0094119714*(URAMP(V(A,K))+1e-10))**-0.68363668
BM2 M2 0 V=(0.68692746*(URAMP(V(GG)+URAMP(V(A,K))/33.263227)+1e-10))**2.1836367
BP P 0 V=0.00092634255*(URAMP(V(GG)+URAMP(V(A,K))/48.423202)+1e-10)**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.00054133951*V(M1)*V(M2)
BIG IG 0 V=0.00046317128*URAMP(V(G,K))**1.5*(URAMP(V(G,K))/(URAMP(V(A,K))+URAMP(V(G,K)))*1.2+0.4)
BIAK A K I=URAMP(V(IK,IG)-URAMP(V(IK,IG)-(0.00049201413*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK G K I=V(IG)
* CAPS
CGA G A 1.3p
CGK G K 1.3p
CAK A K 0.6p
.ENDS
