I've owned one of these once, the 540P-TCFA. Looking for another one. I don't care really what color, but just as long as it hasn't been dragged behind a truck, no cracks behind the locking nut, etc.
Let me know whatcha got, if ya got.
I have a 540PII with the IBZ F3 in it. I'm getting a lot of feed back at when running at high gain.
I don't think I have a broken winding because I can run a pretty fair amount of gain before feedback starts to occur.
I only get feedback when I'm going for that really compressed,long note...