Where should I get Wima MKP2 and FKP3 caps? (or alternatives)

Peteruk · 17th December 2006, 01:24 PM

Hey all,

I’ve decided to replace the output capacitors in my 41hz Amp4 kit with Wima Polypropylene ones, specifically MKP2 and FKP3 types (small size, RM5 and RM7.5), with values ranging from 0.1uf to 0.22uf.

However, I’ve checked some of my usual suppliers, but they either don’t stock these, or are sold out.

Does anyone have any suggestions as to where to look for these?

Of course, I’d be very interested in knowing any as-good or better alternatives.

Thanks,
Peter.

AMV8 · 17th December 2006, 09:03 PM

Hi

LCR polypropylene capacitors from Maplin are the best and most cost effective I have found. They are available in values up to 10uf at good prices. You can spend much more but I doubt that you will find better caps than LCR.

Don

ticktock · 3rd August 2007, 07:33 AM

Hello,

the Wima FKP3 are one of the sonically best available.
Search google for them, they are still made.

Years ago I ordered several at buerklin (sold out), but ar still
available at some others.

They sound better than a simple MKP because of their heavy
construction with solid metal foils.

I use them in the RIAA-section as filtering caps

ashok · 3rd August 2007, 08:41 AM

Are Evox-Rifa polyprops no good ?

Nordic · 4th August 2007, 11:43 AM

RS Components UK.

ticktock · 5th August 2007, 03:30 AM

@ Nordic: thank you !!

@ askok: FKP & KPs sound (& measure) better than MKPs

one difference: MKPs have only metalised foils, KPs have solid
metal (most aluminium) film/foil construction.
Some audiophile types use zink or copper, but these are much
are expensive and larger as well.

MCampbell · 23rd February 2011, 04:09 PM

Also Audiocap.co.uk for higher voltage FKP2 series (250V to 1000V) which RS don't stock.

Mooly · 23rd February 2011, 05:03 PM

Quote:

Originally Posted by MCampbell

Also Audiocap.co.uk for higher voltage FKP2 series (250V to 1000V) which RS don't stock.

I hope Peter has got them by now... it's over 4 years ago

MCampbell · 24th February 2011, 10:50 AM

You can never be too sure - what with current lead-times ;-)

17th December 2006, 01:24 PM	#1
Peteruk diyAudio Member Join Date: Sep 2006	Where should I get Wima MKP2 and FKP3 caps? (or alternatives) Hey all, I’ve decided to replace the output capacitors in my 41hz Amp4 kit with Wima Polypropylene ones, specifically MKP2 and FKP3 types (small size, RM5 and RM7.5), with values ranging from 0.1uf to 0.22uf. However, I’ve checked some of my usual suppliers, but they either don’t stock these, or are sold out. Does anyone have any suggestions as to where to look for these? Of course, I’d be very interested in knowing any as-good or better alternatives. Thanks, Peter.

3rd August 2007, 08:41 AM	#4
ashok diyAudio Member Join Date: Jun 2002 Location: 3RS	Are Evox-Rifa polyprops no good ? __________________ AM

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17th December 2006, 09:03 PM	#2
AMV8 diyAudio Member Join Date: Jan 2005 Location: near london	Hi LCR polypropylene capacitors from Maplin are the best and most cost effective I have found. They are available in values up to 10uf at good prices. You can spend much more but I doubt that you will find better caps than LCR. Don

3rd August 2007, 07:33 AM	#3
ticktock diyAudio Member Join Date: Dec 2006	Hello, the Wima FKP3 are one of the sonically best available. Search google for them, they are still made. Years ago I ordered several at buerklin (sold out), but ar still available at some others. They sound better than a simple MKP because of their heavy construction with solid metal foils. I use them in the RIAA-section as filtering caps

4th August 2007, 11:43 AM	#5
Nordic diyAudio Member Join Date: Sep 2005	RS Components UK.

5th August 2007, 03:30 AM	#6
ticktock diyAudio Member Join Date: Dec 2006	@ Nordic: thank you !! @ askok: FKP & KPs sound (& measure) better than MKPs one difference: MKPs have only metalised foils, KPs have solid metal (most aluminium) film/foil construction. Some audiophile types use zink or copper, but these are much are expensive and larger as well.

23rd February 2011, 04:09 PM	#7
MCampbell diyAudio Member Join Date: Nov 2008	Also Audiocap.co.uk for higher voltage FKP2 series (250V to 1000V) which RS don't stock.

24th February 2011, 10:50 AM	#9
MCampbell diyAudio Member Join Date: Nov 2008	You can never be too sure - what with current lead-times ;-)

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