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Old 27th July 2008, 09:02 AM   #1
rsbay is offline rsbay  Germany
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Join Date: Apr 2004
Location: Erkelenz
Default Original Aleph P Coupling Caps


I had build a clone of the Aleph P version 1.7 with WIMA MKP4 10u coupling caps.
What I want to know is the original type of coupling caps which are used in the
original / commercial design of the Aleph P. Has anyone this informations?

Thanks for your help.

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Old 27th July 2008, 11:06 AM   #2
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Join Date: Jun 2007
Hi Ralph,

the original caps are Panasonic polyester types - series ECQ-E(F).
You can find them by digikey - part number EF1106-ND.
Your used Wima MKP should be a better choice with lower losses - only disadvantage is the bigger size!

Regards Dirk
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Old 27th July 2008, 11:07 AM   #3
Bobken is offline Bobken  United Kingdom
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Join Date: Dec 2002
Location: UK
Hi Ralph,

A while ago (maybe about a year) there was a thread about coupling caps in an Aleph Preamp and I joined in the discussion at that time.
If you do a search, you should find this, and it may be of some help to you.

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Old 28th July 2008, 06:13 PM   #4
rsbay is offline rsbay  Germany
diyAudio Member
Join Date: Apr 2004
Location: Erkelenz
Thanks for the reply.

I start working on a Aleph P clone in 2004 and I read nearly
everything about how to build it. But what I don't know up to
now was the type of the original coupling caps.

The Panasonics can't be so bad, NP also use them in the
X0 preamp.


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Old 28th July 2008, 06:58 PM   #5
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Join Date: Jun 2007
...not only the X0...
also BZLS, X160, X200 and all XA.5 amplifiers...
The information for the digikey part number comes from the BZLS article.

The only dealer I can find for them in germany is digikey.
Easier is to order Vishay/BCComponents series 468 by farnell (farnell number: 1166121).
They are quite the same as the Panasonics with same dimensions, grid and electric strength (only the color is more orange than redbrown :-) ).
I use them in the BZLS.

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