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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Here is the problem posted by Chip647 on May 22, 2015 at 07:50:30:
hello Chip,
well, the higher graded Audio Note OTx has the same standing current of 90mA than my 152 model Tx.
Maybe there is an influence of the magnetic material of the shrouds that create a short out the air gap when saturation starts.
I realized a moment ago that on the AN web site, they adivise to use copper shrouds on their higher grade tx because:
"the copper shroud being non-magnetic improves not only RF influx, but also low level behaviour as it does not short out the airgap on the higher permeable cores like the AN Ultra HiB and the nickel cores this is essential for optimal performance".
This sentence took my attention because as I have stated on my first post, one explanation was (from AN, btw a year ago) "this is that there is some airgaps on lamination and the electromagentic flux generated by the current flow, activate this with vibrations"
Regards
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Follow Ups
- RE: Here is the problem - beto1 08:19:56 05/22/15 (1)
- RE: Here is the problem - Chip647 08:49:23 05/22/15 (0)
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