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Single Ended Triodes (SETs), the ultimate tube lovers dream.

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Re: PP Iron for SE - repost of a 1996 rec.audio.tubes by "Paul"....

Posted by dave slagle on February 17, 2004 at 20:16:27:
well... we are gonna ge shouted off this fourum any minute now, but what the hell.
(SE)Let's say it does go back to Bdc whenever the signal is removed. Once the signal gets going again and you get past the initial magnetization, you're right back in the same loop as always.
but you have to remember the old ace in the hole... the loops represent continuos sinusodal excitation, what happens when we put something somewhat intermittant and decidedly non-sinusodal up against that pretty loop with its predetermined origin and virgin curves?
i have to wonder does the starting point count?
it isn't as clear cut as an initial curve then a reasonably symmetrical loop, but a random mix of the two happening dynamically.
this brings us back to the IMPORTANT question of why some folks think that some DC offset improves the sound of some iron??? (or why some people have such fondness of abusing pp iron.... i think they may be connected)
i must admit that prior to you, the ony other person i can recall suggesting publicly that adding DC to a core to improve sonics from an empirical viewpoint is kondo. there has been much theory tossed around about it, but balls on listening is another topic.
dave