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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="Ufudu" data-source="post: 599486" data-attributes="member: 16901"><p>Karel, thanks for sharing!</p><p></p><p>Karel wound a pair of c cores for me a few weeks ago for my EL84's, and imho they sound great.</p><p></p><p>However one thing that confused me & him at the time was why we measured a much lower inductance (2:1?) (using his and my inductance meters) than what the "winding spreadsheet" predicts.</p><p></p><p>This has been a similar case with a pair of Hammond 1628SEA's that measure 11.5H (B-P) whereas Hammond states 45H iirc. Does it have to do with measuring at zero bias?</p><p></p><p>Thanks again</p></blockquote><p></p>
[QUOTE="Ufudu, post: 599486, member: 16901"] Karel, thanks for sharing! Karel wound a pair of c cores for me a few weeks ago for my EL84's, and imho they sound great. However one thing that confused me & him at the time was why we measured a much lower inductance (2:1?) (using his and my inductance meters) than what the "winding spreadsheet" predicts. This has been a similar case with a pair of Hammond 1628SEA's that measure 11.5H (B-P) whereas Hammond states 45H iirc. Does it have to do with measuring at zero bias? Thanks again [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
EI VS C-Core for PP transformer question
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