So with the three-tap output transformer.... What happens if you only connect one cabinet? Do you safely get one-third of the power, or do you fry something?
Likewise, would two cabinets give you 2/3 of the full power?
(As you can tell, I do not know diddly about output transformers.)
I´ve never seen one in person, and was also under the impression that it had three OT´s.
The only info I´ve come across, is from ´the fender amp book´ by John Morrish.
The book has an early 400PS ad, one head and one cab (folded horn, but does not look like the ones in the ebay listing) and here´s the text
below: ´The 400PS was one of fender´s more bizarre efforts. A giant 440W RMS tube amplifier using 13 tubes drove a SINGLE 18in. speaker in a folded horn cabinet of frightening efficiency´
and ´…the astonishing 400PS coupled three separate 145W tube amplifiers…`
I remember reading the ´warning´from the designer, but I never found schematics for it.
Would be great to hear it though, just because.