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From: Reinhard Zwirner on 12 Nov 2009 17:22
Sparky schrieb:
>
> This cap was removed from a 70's-80's German industrial machine:
>
> <http://i37.tinypic.com/10psxg3.jpg>
>
> It has no polarity markings. One terminal is common with the metal case. Is
> this always an indication of the (-) terminal?
>
> The base has molded terminal locations numbered 1-4, two of which are empty:
>
> <http://i36.tinypic.com/e6x542.jpg>
>
> Markings on the side are:
>
> B41111-B7108-T
> 1000uF 40V-
> GERMANY
> GPF DIN 41332 06.78
>
> I find a few references to a Siemens part that is similar:
>
> <http://www.screenghost.com/shop/show.asp?ID=74#>
>
> but no datasheet can I find. Can someone more resourceful than I find one?

<http://www.bilder-hochladen.net/files/12b4-4t-jpg.html>

HTH

Reinhard (native German ;-) )
From: Proteus IIV on 12 Nov 2009 21:20

THIS IS PURE TROLL BAIT

I AM PROTEUS
From: Proteus IIV on 12 Nov 2009 21:21
On Nov 12, 2:41 am, Sparky <s...(a)thesig.net> wrote:
> This cap was removed from a 70's-80's German industrial machine:
>
> <http://i37.tinypic.com/10psxg3.jpg>
>
> It has no polarity markings. One terminal is common with the metal case. Is
> this always an indication of the (-) terminal?
>
> The base has molded terminal locations numbered 1-4, two of which are empty:
>
> <http://i36.tinypic.com/e6x542.jpg>
>
> Markings on the side are:
>
>     B41111-B7108-T
>     1000uF 40V-
>     GERMANY
>     GPF  DIN 41332 06.78
>
> I find a few references to a Siemens part that is similar:
>
> <http://www.screenghost.com/shop/show.asp?ID=74#>
>
> but no datasheet can I find. Can someone more resourceful than I find one?
>
> I cut open one of these caps. It is paper & foil (or so it seems) spiral wrap
> construction. Can polarity be determined by internal construction? Is the
> center terminal always one pole (ie, always +)?
>
> Thanks.

PLEASE DO NOT FEED THE TROLLS

I AM PROTEUS
From: James Sweet on 12 Nov 2009 22:25
Sparky wrote:
> This cap was removed from a 70's-80's German industrial machine:
>
> <http://i37.tinypic.com/10psxg3.jpg>
>
> It has no polarity markings. One terminal is common with the metal case. Is
> this always an indication of the (-) terminal?
>
> The base has molded terminal locations numbered 1-4, two of which are empty:
>
> <http://i36.tinypic.com/e6x542.jpg>
>
> Markings on the side are:
>
> B41111-B7108-T
> 1000uF 40V-
> GERMANY
> GPF DIN 41332 06.78
>
> I find a few references to a Siemens part that is similar:
>
> <http://www.screenghost.com/shop/show.asp?ID=74#>
>
> but no datasheet can I find. Can someone more resourceful than I find one?
>
> I cut open one of these caps. It is paper & foil (or so it seems) spiral wrap
> construction. Can polarity be determined by internal construction? Is the
> center terminal always one pole (ie, always +)?
>
> Thanks.
>



How is it wired in the circuit? When in doubt, this is what I look at.
You can also substitute it with an AC rated cap and just measure the
voltage across it to find out which way around it should be.
From: Robert Baer on 12 Nov 2009 23:20
Phil Allison wrote:
> "Sparky"
>
>> This cap was removed from a 70's-80's German industrial machine:
>>
>> <http://i37.tinypic.com/10psxg3.jpg>
>>
>> It has no polarity markings.
>
> ** Bullshit.
>
>> One terminal is common with the metal case. Is
>> this always an indication of the (-) terminal?
>
> ** Yep.
>
>> The base has molded terminal locations numbered 1-4, two of which are
>> empty:
>>
>> <http://i36.tinypic.com/e6x542.jpg>
>
>
> ** Are you totally blind ????
>
> The usual cause applies ?????
>
> FYI:
>
> The markings are clearly 1, 2 and 3 with the fourth a NEGATIVE sign
> !!!!!!!!!!!!!
>
> Is not the negative sign *right next* to the pin linked to the case ?????
>
>
>
> .... Phil
>
>
>
For modern capacitors, yes, *BUT* there were some chassis-mounted
caps with POSITIVE (outside) cans/cases.
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