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In Reply to: RE: ELECTRAPRINT Single-Ended Output Transformers, DIY Modifications posted by drlowmu on July 15, 2016 at 08:26:00
I had output transformers from Electra Print once. Good bang for the bucks. "Sonically", What are the improvements?
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Its the same type of improvements, giving you a automobile analogy, of taking a normally aspirated V-8 engine, with two double barrelled carbs, and feeding this very nice engine with
** a fuel line that is 1/8th of an inch in diameter ( 22 AWG from DHT anode) and
** using high resistance spark plug wires ( 22 AWG B+ lead in wire ). That is the EP Primary.
On the EP Secondary,
** its like running an exhaust system with a 1/2 inch diameter single exhaust pipe and
** powering the tires with a Yugo rear end ( two 22 AWG secondary wires).
How does it sound??
Depending upon how well your amp is executed ...every performance an audiophile and a music lover likes, is improved when these weak links are abolished. The better the amp's execution, the more the mods will bring to the table.
Jeff Medwin
What does Jack think about the mods?
Never asked him. His response may be predictable, one never knows. Who cares ??
More important is what I HEAR, and what "I" think, when I change things.
My added listening pleasure.
I've offered two no-brainer mods, tell me what you hear !!
Jeff
I concur with what Genp asked? Is there any sonic improvements after the mods?
Wouldn't the nylon bolts and nuts instead of the brass is better fitted for the application if minimizing magnetic flux shorting across the core is a concern? Just asking. And you know exactly when you are over torquing one of these nylon bolts.
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.Thou shall not stand where I type for I carry a bottle of Certified Audiophile Air and a Pure Silver Whip.
Stainless steel bolts are much stronger than Brass or Nylon, and have no magnetic properties.
Some steel bolts can be magnetic. I used to think a better and higher grade "stainless steel" is non-magnetic but I changed my mind after reading this article.http://www.bssa.org.uk/topics.php?article=5
I am sure most "real" stainless steel would be non-magnetic but I am a little doubtful of the ebay ones from HK and China and some local hardware store.
Even when they are non-magnetic; they are still conductive.
I mostly skid steel and brass hardware on transformers whenever I can. Nylon and plstics bolts are quite strong for transformers and you won't screw up the lams and windings with over torqueing them. And they are excellent when you want to electrically isolate the transformers from the main chassis. I always try to isolate the OPT from the chassis ground in audio stuff.
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.Thou shall not stand where I type for I carry a bottle of Certified Audiophile Air and a Pure Silver Whip.
Edits: 07/16/16
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