Mundorf SI+

[studiostevus]

Bit of a silly question... I bought these caps, but they don have markings on it (not at the pins, nor is there a line for minus).... No datasheet can be found...

What are the pins?

Thanks

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

 

[AmpliFire]

For what it is worth, I found this statement on hificollective: ''Mundorf is converting over "all" SI caps to the new PI configuration...the PI types have the same terminal spacing as the SI, but the lead material itself is vastly superior (tinned OFHC copper...non-magnetic; instead of clad steel for the SI)''

But damned, it's hard to find datasheets on either one ! I couldn't find something within 20 minutes !

 

[john dozier]

Search for Mundorf. It will be a German website. Open it and click on US flag. Then choose downloads. Then choose 2011 catalogue. It lists all of their products. The four conductor caps should had two small and two large leads. The diagrams will tell you which is which. Regards John Dozier

 

[AmpliFire]

You're right, but both the SI+ and PI products are not in there. The SI+ series is a discontinued product, and I only found some information about the 2-pin caps, not about the 4-pin cap Studiostevus has.

 

[john dozier]

In the 2011 catalogue there are other four pin caps. Diagram should be applicable. Be careful, there are TWO catalogues on two differenct websites. One is the 2008 catalogue. Of course that may be the one you need. Spend more time searching. Regards

 

[data]

If all else fails, shoot them an email, they will respond in a few days and are very helpful with inquiries.

 

[dlhasha]

The four pins are not all the same. The pin that is closest the center of the capacitor is negative output. The postitive output is opposite. Looking at the bottom of the capacitor, the negative input is to the left, where the positive input to the right. I hope this helps.

Dennis

 

[Bas Horneman]

The picture is not very clear. Usually the - is knurled. The + smooth.

The pin that is closest the center of the capacitor is negative output. The postitive output is opposite.

That negative pin also is also the "other" way round.

Not too shure all three are + come to think of it. (So my pic might be wrong)(but you could easily check for that with a multimeter)

 

[studiostevus]

There's nothing knurled here (whatever that means)

I retook the picture. One of the pins indeed points inwards

An externally hosted image should be here but it was not working when we last tested it.

 

[Bas Horneman]

There's nothing knurled here (whatever that means)

They are ALL knurled (See pic of what a knurled surface looks like)

 

[dlhasha]

Studiostevus - Thanks for the clear picture of the capacitor bottom. The pin that points inward is the neg output.

 

[randytsuch]

Looks just like a Jensen 4 pole.
Jensen datasheet
https://audio.jensencapacitors.com/public/dokumenter/kat6elyt.pdf

Randy

 

[studiostevus]

Looks just like a Jensen 4 pole.
Jensen datasheet
https://audio.jensencapacitors.com/public/dokumenter/kat6elyt.pdf

Randy

Wow... you are right. Seems to be Jensen's rather than Mundorf

Thanks everyone, I think "we got 'em"

 

[dlhasha]

The capacitor pictured in post# 1 is definitely a Mundorf MLYTIC - SI+. This is Mundorf's discontinued 4 pole electrolytic capacitor. It may have the same pin assignments as a Jensen; however, this may have been done so it could be used as a drop-in alternative to the Jensen.

Dennis

 

[studiostevus]

Dennis, thanks for confirming. Any opinions on sound/quality of these caps?

 

[data]

I have some two pole ones that I'll be using in a A400 restoration, but not there yet.

But I did use the M-lytic HV type in my amp and was impressed with the difference, but my amp shows component differences more than any I have heard.

Safe to say they should be of top quality, up there with Jensen's from what I have read