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In Reply to: Careful now!! posted by drlowmu on February 26, 2007 at 13:36:56:
There is no detail in this report. What primary taps were in use to start with? What primary taps are in use now?As far as "Innocent, until proven guilty, the norm in America", that is for criminal cases. In science, you are wrong until you prove yourself right.
Now please give us the details of how you kept the B+ voltage the same after making those changes in the power supply.
Follow Ups:
Tre',With two different Signal Transformer Co. DU 1/2s in series,( as Greg and John Swenson use them ), there are four windings on the primary and four on the secondary. Each winding, however, has four access points at O-104-110-120 VAC.
So, there are a multitude of combinations possible - because you have 4 windings times 3 ( not 4 ), or 12 taps on the primary and 12 taps available on the secondary. The VAC combinations obtainable, with 12 primary taps and 12 secondary taps are truly VAST !!
It is not of import "one iota" as to what exact taps were selected, as long as the overall B+ voltages were similar - as I had intially reported. They were similar BTW, at under two percent in difference as we recall. So, why "invent in your mind" - such an obnoxious smokescreen, that MY method is not sound? That is pure B.S.
All you are doing is (1) existing in denial and (2) trying to discredit me publically with one of the silliest things I've ever seen you profess up on AA. You need some help!!
What you SHOULD be considering in your mind is the findings of our subjective listening evaluation : that the Low HY, Low DCR, Low C approach ( as developed by my friend, the designer of Serious Stereo 2A3 SE amplifier) TOTALLY SMOKES conventional audio power supply implementations, which have been regularly used over the last 100 years.
I am open-minded - as to whats the best sounding power supply implementation and I wanna USE it for my listening enjoyment, and make it available up here to others who may share a similar interest in great sound. That audience doesn't seem to be you, and frankly, thats perfectly OK by me.
Jeff, you still have not told us what taps were and are used or what the secondary voltages were and are. I don't buy your "under two percent" BS until you tell me the details.Your opinion is your opinion, you are welcome to it but the facts surrounding what you report have not been disclosed. And until they are, no one can make sense out of what you have reported.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Well,..... here is the email I find in my home mailbox:From:
To: "Jeffrey Medwin"
Subject: "you are the one "guilty" of being a total jerk about this report of mine, Tre'."
Date: Mon, 26 Feb 2007 16:46:09 -0800Don't call me a jerk you bastard. If you are going to publish reports
about your silly Low DCR, Low H, Low C shit, make them scientifically
complete or keep them to yourself.
I will call you to the mat every time.
Tre'
- - - - - - - - - - -
Tre'I don't post on AA to please you!!
If you don't believe me, just take a long walk off a short pier.
If you don't make full disclosure of your technical process you have no
credibility.It's not about me, Jeff. It's about truth.
Tre'
P.S. I stand by that email. You always make this personal(name calling, etc...) because you can't back up your BS. Why don't you come to California and we'll talk about it?
Have Fun and Enjoy the Music
"Still Working the Problem"
Bull. What taps I select make NO difference, if the final stage's voltage is within 2% or less !! Any idiot knows that.I don't need to answer smokescreens to the likes of you on such a silly, no, sutpid psuedo-scientific question. Reasonable questions I will answer.
Your HEART is in the wrong place and you are mentally and emotionally off-base on this .
You certainly do TOTALLY miss the larger aspects of the information I provide!! Things like "critical inductance at 60 HZ" is sonically UNdesireable and to be avoided at all costs. You can't accept it, as it is COUNTER to whats in your beloved RDH-4 and how you believe to build.
Re-read RDH-4 on audio power supplies, while I spend time enjoying Greg's amp, as it is now playing back music - like NEVER before !!
Jeff Medwin
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