remplacement de 2 gros condensateurs

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 je veux remplacer 2 condensateurs sur un ampli hifi
ce sont des condos chimiques de filtrage


http://www.gotronic.fr/cat-condensateurs-metalliques-368.htm


il n'y a pas d'infos sur l'empatement

 jeanmarie



Re: remplacement de 2 gros condensateurs
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3 pattes : sont-ce des condos *doubles* ?


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Re: remplacement de 2 gros condensateurs
Le Sun, 6 Apr 2014 15:08:24 +0200,

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    ne m'y fierais pas trop :-P






    Si on est vraiment dans le monde de la HIFI (la vraie, avec de

    prendre une capa un peu plus grande sont assez faibles.


    risque est beaucoup plus grand...

    JKB

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Re: remplacement de 2 gros condensateurs
Le Sun, 06 Apr 2014 12:49:28 +0200,



    Bonjour,

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    faut donc une ESR la plus faible possible. Par ailleurs, jamais de






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    datasheets des composants.

    JKB

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=> http://grincheux.de-charybde-en-scylla.fr
=> http://loubardes.de-charybde-en-scylla.fr

Re: remplacement de 2 gros condensateurs

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c'est un ampli Denon PMA-730



 jeanmarie



Re: remplacement de 2 gros condensateurs
Le Sun, 06 Apr 2014 19:30:21 +0200,


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    pas vraiment envie de t'aider.


    http://www.vintageshifi.com/repertoire-pdf/Denon.php







    Bonjour l'apel de courant. Il n'y a pas non plus de self dans







    parleurs) et savoir quels sont les composants qui chauffent. Vue sa


    chauffer.

    Sinon, des condensateurs qui pourraient faire le boulot (parce que

- http://radiospares-fr.rs-online.com/web/p/condensateurs-aluminium/4340784/
- http://www.mouser.fr/ProductDetail/United-Chemi-Con/EKMH630VSN822MA45T/?qs=sGAEpiMZZMvwFf0viD3Y3dr%252bAQy20l66qhG%2f3mFad20%3d

    Sans garantie, hein, parce qu'en fonction du transfo, un 8,2 mF +

    des pincettes.

    JKB

--  


=> http://grincheux.de-charybde-en-scylla.fr
=> http://loubardes.de-charybde-en-scylla.fr

Re: remplacement de 2 gros condensateurs
Le Sun, 6 Apr 2014 21:36:59 +0000 (UTC),

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    moins_ des 100V. Le 56V, en admettant qu'il soit efficace, ne suffit


    JKB

--  


=> http://grincheux.de-charybde-en-scylla.fr
=> http://loubardes.de-charybde-en-scylla.fr

Re: remplacement de 2 gros condensateurs
wrote:

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zifi grand-public.

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foste de frappe.






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bien foutu.






du manuel de service.


Re: remplacement de 2 gros condensateurs







peu.  



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et inductances du secondaire sont mis a contribution pour limiter les  





Ce n'est pas le cas des machins a tubes, bien ou mal faits.





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Re: remplacement de 2 gros condensateurs
Le Mon, 07 Apr 2014 10:38:44 +0200,

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    durer.

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    de chez Scott, Fisher et ReVoX/Studer, je ne m'y fierais pas trop.
    Chez ReVoX, le grand gag est la fabrication par Studer de tantales


    le permettre (comme ils se le sont permis pour leurs transistors de




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    toriques et lorsqu'on virait le circuit de charge, on mesurait en

    mise sous tension.

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    une alimentation de puissance, il y a au minimum un CRC (avec un R




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    dans un environnement assez chaud. Pour peut qu'il soit de gamme
    moyenne, avec une ESR moyenne aussi, il finira par ne pas aimer.



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    Je maintiens que ces condensateurs ont une tension max trop faible




    JKB

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=> http://grincheux.de-charybde-en-scylla.fr
=> http://loubardes.de-charybde-en-scylla.fr

Re: remplacement de 2 gros condensateurs


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--  
Sylvain


Re: remplacement de 2 gros condensateurs
Le Mon, 07 Apr 2014 12:04:44 +0200,


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    Et tout sauf intuitif...

    JKB

--  


=> http://grincheux.de-charybde-en-scylla.fr
=> http://loubardes.de-charybde-en-scylla.fr

Re: remplacement de 2 gros condensateurs
merci
 j'ai la doc de service
mais je voulais un avis
c'est aussi l'interet d'un NG

et puis vos echanges sont instructifs

 CDT
   Jeanmarie


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