maybe search shorting turns?mkiijam said:Looking for .75" copper tape that is THICK.
Output transformer shielding, like the single wrap around the outside of the transformer.
Everything i have been finding is very thin stuff...
Why? Define "thick"...it's easy, just a number, either gauge or thickness.mkiijam said:Looking for .75" copper tape that is THICK.
Have you actually seen existing transformers with thick copper shield?Everything i have been finding is very thin stuff...
called the "belly-band".mkiijam said:Looking for .75" copper tape that is THICK.
Output transformer shielding, like the single wrap around the outside of the transformer.
Everything i have been finding is very thin stuff...
That's why I asked the OP, but he seems not to be interested anymore...gyraf said:You don't need thick copper shielding. Copper is electrostatic shielding, and ANY thickness will guarantee the same effect.
What you may be thinking of is magnetic shielding - which is in effect not really shielding, but rather diversion of magnetic field lines. And because of the need to divert and contain as many field lines as possible for efficient shielding, thicker is better in this case.
But goes for magnetic, not for electrostatic shielding
/Jakob E.
Shorted turns are used to deviate the magnetic field emitted by the xfmr. It applies only to power xfmrs. bell ends are more expensive than a turn of copper, when they are available.Tubetec said:I suppose if its an interwinding screen on an input transformer the thin would tape is most appropriate ,
Sometimes you do see a band of copper around a mains transformer across the bobbin and core , seems like the shorted turn scenario ,they definately seem to use heavier stuff in that application ,
Is electrostatically screening the windings on an output transformer from external sources likely to be of use,
Would using a shrouded transformer mounting or bell ends be an easier way to go and give an advantage of some magnetic screening as well ?
I wonder how would the presence of an electrostatic or magnetic screen affect incidental capacitance relative to the windings
would it be likely to change the response at high frequencies ?
mkiijam said:Looking for .75" copper tape that is THICK.
Output transformer shielding, like the single wrap around the outside of the transformer.
Everything i have been finding is very thin stuff...
CJ said:buy some thick copper and some double sided tape from 3M. they make all types, not just the wimpy clear stuff on the roll .
or jb weld the copper.
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