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Audio and Video Talk
Valves / Vacuum Tubes
EI VS C-Core for PP transformer question
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<blockquote data-quote="Ampdog" data-source="post: 601082" data-attributes="member: 144"><p>Yes you can,</p><p></p><p>although I am not fully familiar with the Yves calculator; I would expect <strong>Karel Mars</strong> and other users to be able to reply more fully in that regard. </p><p></p><p>But as cautioned before, one should not expect C-cores to be a wonder cure. (The advantages are sometimes a little exagerrated in audio lore; also as J Nouw said earlier.) E.g. I would not replace a good E-I product with a C-core per se. Such a move may not improve audio experience as such. Rather, a C-core transformer makes it easier for the engineer to fashion other design parameters like NFB stability - - and yes; distortion as well, again if the E-I product left something to be desired in the first place. I do prefer C-core OPTs in high power products. To reach fractional distortion levels in the >70W region, an E-I OPT becomes a large component. </p><p></p><p><span style="font-size: 9px">A high quality 100W C-core OPT weighs in at some 5,6 Kg, a suitable stereo power power transformer at 6,6 Kg. </span></p></blockquote><p></p>
[QUOTE="Ampdog, post: 601082, member: 144"] Yes you can, although I am not fully familiar with the Yves calculator; I would expect [b]Karel Mars[/b] and other users to be able to reply more fully in that regard. But as cautioned before, one should not expect C-cores to be a wonder cure. (The advantages are sometimes a little exagerrated in audio lore; also as J Nouw said earlier.) E.g. I would not replace a good E-I product with a C-core per se. Such a move may not improve audio experience as such. Rather, a C-core transformer makes it easier for the engineer to fashion other design parameters like NFB stability - - and yes; distortion as well, again if the E-I product left something to be desired in the first place. I do prefer C-core OPTs in high power products. To reach fractional distortion levels in the >70W region, an E-I OPT becomes a large component. [SIZE=9px]A high quality 100W C-core OPT weighs in at some 5,6 Kg, a suitable stereo power power transformer at 6,6 Kg. [/SIZE] [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
EI VS C-Core for PP transformer question
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