SUT - electrical theory and practical experience

Exist at least 4 long threads about in this forum, in all were very hot dialogues and that the end even that in theory exist the phenomenon that the cartridge cantilever could " suffer " of some kind of " stifness "  and even if happens Wynn proved in two of those thread with measurements in real time that the  effect in reality does not disturb the cartridge tracking levels and the one that really could " suffers " with that load/cartridge inductance and total nettwork capacitance is the bad phono stages designs but fortunatelly today not only Phono Stages have widebandwindth but high overload levels.

...And with that Raul has created a new branch of physics. That the cantilever is affected is a very real thing. If not- then we all could solve the world's energy problems by simply using enough phono cartridges 😂

@rauliruegas Before you implicate Mr Wyn with such a proposition, you better be sure that's what he really said! I think you'll find that he said something a bit more specific.

I forgot @mijostyn  to post: @antinn  too:

" and at 1.5MHz, the amp becomes unstable. "

R.

@atmasphere  , maybe I explained in wrong way: of course that as the theory says it happens, this is not under discussion and maybe as intact said you can open the fifth thread about till you can win. Just do it.

R.

maybe I explained in wrong way: of course that as the theory says it happens, this is not under discussion and maybe as intact said you can open the fifth thread about till you can win.

😀 Apparently, I already did...

@rauliruegas,

You have taken what I said completely out of context.  What I was trying to say is that based on the two values you provided which was only the slew rate and the bandwidth, that by the equations the amp would become unstable at a specific voltage with one caveat (as addressed in the documents I linked) that designing the amp for peak voltage above that threshold maintains stability.  I also linked the Spectral specification where they specify all three values - slew rate, bandwidth and peak voltage.

So, I never stated that your preamp would be unstable above 1.5Mhz and now better appreciating how you interpret these items, should I ever conversate with you again, I will endeavor to be far more specific to prevent any misunderstanding. 

Peace on Earth and Good Will to All