how do i sheeld a normal EI transformers magnetic feild from audio circuits within a metal rack cace?
would a sheet of metal over them work or is there a better way?
thankyou ppl
sheelding
May 13, 2006
26 Replies
i dunt no. i carn say mor sinz my sPell chequer is bursted
Regards ......... Rheilly Phoull
It's difficult/expensive to shield from magnetic fields. Best options are:
- use a good transformer with minimum leakage (toroid)
- distance: keep it further away from circuitry of interest
- layout: keep the loop area of sensitive circuits small.
Clifford Heath.
You get shielding from electric fields, but very little effect on the magnetic fields. You need lots of magnetically "soft" metal to shield from magnetic fields.
"crazy frog"
** Wrap a copper strap around the thing - in the same direction as the windings - and solder the trap up. For good measure, wrap a few turns of strip lamination from a discarded toroidal tranny and tape or tie it tight. ** Barely has any effect.Sensible PCB track and wiring layout is the best idea.
........ Phil
"Rheilly Phoull" wrote
i dunt no. i carn say mor sinz my sPell chequer is bursted
-- Regards ......... Rheilly Phoull
***** We don't need you to point the obvious out to us,the name you hide behind says it all.Brian Goldsmith.
not you again troll
watch it troll or i will post all youre messages on the google groups.
*PLONK*
"crazy frog" wrote
thaks for and now i will post it on google groups. you will fined it in aus.computers arsewipe
*plonk******* FINED it?????????????????FINED it???????? Oh dear!
Brian Goldsmith.
*plonk*
great it it works
"crazy frog" wrote in news:446ade27$0$25132$ snipped-for-privacy@news.optusnet.com.au:
I'm beginning to suspect that this 'crazy frog' bloke is a bit of a plonker.
GB
"Men will never be free until the last king is strangled with the
entrails of the last priest." (Diderot, paraphrasing Meslier)
i only plonk abusers
"crazy frog" wrote in news:446b095a$0$25127 $ snipped-for-privacy@news.optusnet.com.au:
I'd reply, but I've got you killfiled.
GB
"Men will never be free until the last king is strangled with the
entrails of the last priest." (Diderot, paraphrasing Meslier)
Or at least he likes plonker up the chuff!
*plonk* f****it
Crappy Frog thinks that typing "*plonk*" will prevent someone from posting! It never works - but he keeps on doing it anyway........................
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