Jim Lesurf wrote:


I think others have already explained this apparent puzzle in detail.
But, to confirm, yes, the problem may be that the amp in question
cannot deliver sustained (or peak) currents high enough to allow the
power to double.


Jim, John and Stewart, thanks for the explanations. I may have to hit
the books again, I can't believe how much stuff I have forgotten!

Alas, I can confirm that the older you get, the more you forget. :-)

Slainte,

Jim

Surely you have learned more *to* forget?