3-leaded russian PIO caps

moonbird · 2nd February 2010, 11:57 PM

Does anyone know the use and wiring for the three leaded Russian PIO caps on EBAY. I know what to do with a filter-type cap that has a shared common lead (ground it) - but I guess I am too stupid to figure out a use for the lower value caps like .1uf?? Could these be used to as "mixer" coupling caps to merge like a reverb section signal with a dry signal?? Or even stranger perhaps a "splitter". Can someone think of a more clever use?? Thx.

HollowState · 3rd February 2010, 01:59 AM

Can you provide a link to these capacitors. I looked around on eBay but couldn't find them.

moonbird · 3rd February 2010, 02:59 AM

Heres a couple:

2 x 0.25uF 1500V PIO CAPACITORS KBG. Lot of 4 - eBay (item 200432863436 end time Feb-02-10 21:53:45 PST)
Paper + Oil Capacitor KBG-MP 2N 2x 0,25uF 600V QTY=3 - eBay (item 250370382010 end time Feb-03-10 07:56:01 PST)

astouffer · 3rd February 2010, 03:29 AM

It looks like two caps in series with the center of the two being the case. Useful for bypassing something to ground I suppose... Have a few in my junkbox that are similar and even some with three sections.

Wavebourn · 3rd February 2010, 03:30 AM

Yes, they have 2 caps inside, with one common leg connected to the case.

alexberg · 3rd February 2010, 03:48 AM

Quote:

Originally Posted by moonbird

Does anyone know the use and wiring for the three leaded Russian PIO caps on EBAY. I know what to do with a filter-type cap that has a shared common lead (ground it) - but I guess I am too stupid to figure out a use for the lower value caps like .1uf?? Could these be used to as "mixer" coupling caps to merge like a reverb section signal with a dry signal?? Or even stranger perhaps a "splitter". Can someone think of a more clever use?? Thx.

There is nothing in particular in those capacitors besides having two caps in one case. Common terminal is tied to the case.
Datasheet states Paper low voltage low frequency capacitors.
Alex

regal · 4th February 2010, 01:10 AM

Quote:

Originally Posted by alexberg

There is nothing in particular in those capacitors besides having two caps in one case. Common terminal is tied to the case.
Datasheet states Paper low voltage low frequency capacitors.
Alex

The problem with KY40's&42's has been the ungrounded metal case, it tends to pick up interference from other components and can lead to oscillations. Being able to ground the case with a lead is much nicer than trying to solder a wire to it.

2nd February 2010, 11:57 PM	#1
moonbird diyAudio Member Join Date: Sep 2008	3-leaded russian PIO caps Does anyone know the use and wiring for the three leaded Russian PIO caps on EBAY. I know what to do with a filter-type cap that has a shared common lead (ground it) - but I guess I am too stupid to figure out a use for the lower value caps like .1uf?? Could these be used to as "mixer" coupling caps to merge like a reverb section signal with a dry signal?? Or even stranger perhaps a "splitter". Can someone think of a more clever use?? Thx. __________________ "Life is hard -- afterall it kills you ..." Katharine Hepburn

3rd February 2010, 01:59 AM	#2
HollowState diyAudio Member Join Date: Aug 2006 Location: Taxland, New Jersey	Can you provide a link to these capacitors. I looked around on eBay but couldn't find them. __________________ "The supercomputer is technologically impossible. It would take all of the water that flows over Niagara Falls to cool the heat generated by the number of vacuum tubes required." ~ Professor of Electrical Engineering, New York University

3rd February 2010, 02:59 AM	#3
moonbird diyAudio Member Join Date: Sep 2008	Heres a couple: 2 x 0.25uF 1500V PIO CAPACITORS KBG. Lot of 4 - eBay (item 200432863436 end time Feb-02-10 21:53:45 PST) Paper + Oil Capacitor KBG-MP 2N 2x 0,25uF 600V QTY=3 - eBay (item 250370382010 end time Feb-03-10 07:56:01 PST) __________________ "Life is hard -- afterall it kills you ..." Katharine Hepburn

3rd February 2010, 03:30 AM	#5
Wavebourn diyAudio Member Join Date: Sep 2006 Location: Pleasant Hill, CA	Yes, they have 2 caps inside, with one common leg connected to the case. __________________ The devil is not so terrible as his mathematical model! Wavebourn: We Create Creativity!

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3rd February 2010, 03:29 AM	#4
astouffer diyAudio Member Join Date: Jun 2004 Location: Pittsburgh, crumbling wasteland	It looks like two caps in series with the center of the two being the case. Useful for bypassing something to ground I suppose... Have a few in my junkbox that are similar and even some with three sections.

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