Indeed a dual primary xfmr can be created in LTspice.
You need to include all windings in the K statement.
There is a beautiful example of tube amp in the Files, in fact more
than one:
Fender Twin Reverb AB763 and Fender Twin Reverb AA270
Also Fisher500c and Laney_Marshall_EL34_50Watt
Le 21/05/2014 15:32, Vlad
imbvlad@... [LTspice] a ¨¦crit?:
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I don't know if it's possible to simulate a
double-primary transformer in LTspice. At least not with
inductors and coupling between them. Still, if others have
different answers, it would be useful to follow the steps
in the group's home page about asking for help, how to
upload schematics and where.