About the topology and schematics, if I understood correctly, he received the schematics of the Stax amp, and not Rudi's...and comparing both by visual inspection, from a picture of the top of the amp, as there is no picture of the guts of the Egmont Signature in the website at all, he decided that both were equivalent with a simplified PSU...Good...a very informed opinion!!!
You understand very little correctly. I have pictures of the insides of
an egmont signature. I will not say where i got them. I could post them
here but they would not last long as they certainly were not pictures
of my amplifier.
It does not matter. There is absolutely nothing new or unique about
any rudistor product. Rudi used to be very anti opamp and all about
"correct spectral harmonic compensation" Whatever that was. Now
his solid state products are covered with opamps. Wonder what happened.
A box of boxes. And hand laid out circuit boards with no ground plane.
Also keep in mind that many of those schematic from huge companies, have patents that protect them, they are huge companies, to get a pattent takes a lot of time...nobody for a few amps will file even a pattent for them, and that is why they protect the schematics with more care.
thing a patent is something else. For a company to be issued a patent something
has to be unique or different. None of those companies have anything unique or
different. Nelson Pass has a few different patents on some very different kind
of circuit technologies, few of which would hold up in a court of law.
The microzotl is protected by a patent. Have not seen a single other tube circuit
patented in the last 40 years.