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Old 8th July 2012, 07:05 AM   #21
Zen Mod is offline Zen Mod  Serbia
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I can't go through drawing all that ....... 30-th time .........

believe it or not , and search

having electrical short circuit through toroidal xformer isn't a wise thing .

magnetic properties of screw material doesn't have anything with exact problem

just iimagine piece of wire , made of base plate +left screw+Al plate +right screw+base plate again ;

isn't that short circuit , going through (any & both ) toroid ?
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Last edited by Zen Mod; 8th July 2012 at 07:08 AM.
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Old 8th July 2012, 07:11 AM   #22
tinitus is offline tinitus  Europe
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and stacking toroids would do the same ?

this means that two toroids shouldnt even be close to each other ?
but spreading them would cause issues as well ?

well, I have always preferred seperate monos anyway
and 'lifting' the toroids with very thick rubbers
and using non metal top plate
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Old 8th July 2012, 07:22 AM   #23
Zen Mod is offline Zen Mod  Serbia
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boys

be serious when serious things are in question

you can stack 2 or zillion of them , that don''t have anything with electrically short circuit , which is main issue here ..

just imagine properly mounted toroid in case : screw from bottom plate , going through toroid center , then small top plate (rubber plates I'm not counting this time ) .

then use your green-yellow wire , connected to one point of chassis already , and connect it to top of toroid's screw

what's happening ?
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Old 8th July 2012, 08:36 AM   #24
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OK, let's solve it in simple way. The additional plate is unnecessary. Throw it away and bolt rectifiers on bottom plate.
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Old 8th July 2012, 09:53 AM   #25
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Idiot just saws plate in two, as in circus.

(bigger idiot stacks toroids, then makes conductive circle for even prettier fireworks)
Fat mounting plate with thin ground wires is cool.
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Old 8th July 2012, 01:03 PM   #26
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Quote:
Originally Posted by jacco vermeulen View Post
Idiot just saws plate in two, as in circus.

(bigger idiot stacks toroids, then makes conductive circle for even prettier fireworks)
Fat mounting plate with thin ground wires is cool.
A person sees themself by projecting their personality onto others, and then watches the reflection come back.
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Old 8th July 2012, 01:20 PM   #27
Zen Mod is offline Zen Mod  Serbia
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naah

everyone knows that Jacco is always writin' looking at mirror

that's the reason why his posts you always must read through thick and pink glasses

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Old 8th July 2012, 01:42 PM   #28
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Gentlemen,

Thanks for pointing out a Shorted Turn.

Is this the problem ?

Shorted Turn - is a closed loop around a magnetic field, which can get a massive current induced into it

Can a magnetic field induce a current in aluminum and stainless steel ?

However, could the magnetic field induce a current in the ferrous washers - which would then be conducted by the aluminum loop ?


To be on the safe side - I should break the loop.


Mounting diode bridges on top of the donuts is a technique I've seen on a few amps (with a single donut).
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Last edited by Uunderhill; 8th July 2012 at 01:48 PM.
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Old 8th July 2012, 03:05 PM   #29
juma is offline juma  Germany
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Quote:
Originally Posted by Uunderhill View Post
... Can a magnetic field induce a current in aluminum and stainless steel ?...
Do they conduct electricity ?
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Old 8th July 2012, 03:13 PM   #30
AVWERK is offline AVWERK  United States
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Underhill
Hot glue you mention is not the best way to secure those caps. I have done this before and overtime they can knock off easily. This side of mounting brackets pure silicone is superior every time to any type of hot glue sticks

Regards
David
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