Author Topic: How to connect dual capacitor in series  (Read 1013 times)

Offline Me2U

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How to connect dual capacitor in series
« on: May 10, 2012, 13:18 »
This question may sound stupid but I am not a electrical guy... Pls advice... Thanks !!!

Dual cap has 2 positive one negative... How to connect in series ?

Offline GAGA@echoloft

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Re: How to connect dual capacitor in series
« Reply #1 on: May 10, 2012, 14:07 »
u cannot do that.
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Offline Me2U

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Re: How to connect dual capacitor in series
« Reply #2 on: May 10, 2012, 14:46 »
I want to do the modification as per the link:

http://www.ahfartaudio.com/diy/modsntips/sun2a3/sun2a3.html

It seems that it is possible to do.

Offline GAGA@echoloft

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Re: How to connect dual capacitor in series
« Reply #3 on: May 10, 2012, 15:16 »
i do not see any part of the article mentioning that u can series a dual cap? unless i misunderstand your context of connecting caps in series? the working voltage of the sunaudio is below 350V. normally single caps are connected in series so as to obtain a working voltage required.  eg.

   +
47uf/500v                          +
   _                           =     23.5uf/1000v
   +                                     _
 47uf/500v                           
   _

effectively, u also get only half of the capacitance. If u still think it is possible to series a dual cap ( ie. 47uf + 47uf dual cap in a single can), please enlighten me when u managed to do so.
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Offline wwenze

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Re: How to connect dual capacitor in series
« Reply #4 on: May 10, 2012, 15:56 »
3-pin capacitor?

It works like a normal 2-pin capacitor. Just follow whatever the marking says. You can confirm yourself if the + pins are internally connected.
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Offline vajrasattvasg

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Re: How to connect dual capacitor in series
« Reply #5 on: May 10, 2012, 16:17 »
to have it series, the ground of cap A  must be connected to +ve of cap B.

if internal cap, sharing same ground... cannot be done.. you are just shorting the cap...
maybe the human ear isn't good enough. we need measurements, figures, numbers, calculations to tell and convince us what good sound is. or do we have to satisfy an unspoken insecurity??

Offline GAGA@echoloft

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Re: How to connect dual capacitor in series
« Reply #6 on: May 10, 2012, 17:03 »
3-pin capacitor?

It works like a normal 2-pin capacitor. Just follow whatever the marking says. You can confirm yourself if the + pins are internally connected.
Nope. It is two capacitors sharing a common electrode. The two + are not connected. that is why it is called a dual cap in a single can.
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Offline GAGA@echoloft

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Re: How to connect dual capacitor in series
« Reply #7 on: May 10, 2012, 17:17 »
folks, he is referring to caps like this :
http://i.ebayimg.com/00/s/NzY4WDEwMjQ=/$(KGrHqZ,!hoE6mHK+,kCBOzdJhh1Hg~~60_12.JPG

two tags for two individual sections.... one common -ve.
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Offline DIYer Straits

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Re: How to connect dual capacitor in series
« Reply #8 on: May 10, 2012, 17:54 »
Audere' Est Facere'    COME ON YOU SPURS.......
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Offline wizardofoz

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Re: How to connect dual capacitor in series
« Reply #9 on: May 10, 2012, 18:39 »
yup CAN'T be done
I have a pile of stuff that pushes out squiggly waveforms from smaller squiggly waveforms that sometimes come from 1's and 0's.
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Offline Me2U

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Re: How to connect dual capacitor in series
« Reply #10 on: May 10, 2012, 18:48 »
Hi Gaga@echo loft and All Si Fu,

The article did say connect in series, "500v/47uf x 2 using Blackgate WKZ-series 500v/100+100uf dual cap".

My question may not be clear but what I want to do is to connect 2 dual cap in series. If it is possible, seem to be, is it beneficial to do so ?

Thanks again !!!

Offline Me2U

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Re: How to connect dual capacitor in series
« Reply #11 on: May 10, 2012, 18:49 »
yup CAN'T be done

So... I have been scam... I bought the cap already...

Offline YH

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Re: How to connect dual capacitor in series
« Reply #12 on: May 10, 2012, 18:59 »
I think you misread the word 'series'?

It probably meant the series or the range of the capacitors rather than the method of connecting them

Offline ahc3638

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Re: How to connect dual capacitor in series
« Reply #13 on: May 10, 2012, 19:47 »
My interpretation:

For caps after the choke, exact same values are used.
For the big cap after the choke, use the Blackgate WKZ-series 500V/100uf+100uf dual cap to replace the two 500V/47uf caps.
ie increase the capacity of the two 47uf caps to 100uf each.

Offline DIYer Straits

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Re: How to connect dual capacitor in series
« Reply #14 on: May 10, 2012, 19:59 »
Yup,you misconstrued it. Nowhere in the article does it say to connect any caps in series.

"We have the power trans, 1 choke & 2 output trans. There are 8 electrolytic caps & 2 coupling caps. Blackgates are employed for the e-caps resulting in much better grip on the music.

Exact same values are used for caps after the choke:

16v/100uf x 2 using the Blackgate standard or NH series
160v/47uf x 2 using Blackgate VK series
160v/100uf x 2 using Blackgate standard or N-series
350v/47uf x1 using your current Sun big cap..."

You have not been scammed.

Hi Gaga@echo loft and All Si Fu,

The article did say connect in series, "500v/47uf x 2 using Blackgate WKZ-series 500v/100+100uf dual cap".

My question may not be clear but what I want to do is to connect 2 dual cap in series. If it is possible, seem to be, is it beneficial to do so ?

Thanks again !!!


The original circuit.

« Last Edit: May 10, 2012, 20:01 by DIYer Straits »
Audere' Est Facere'    COME ON YOU SPURS.......
Modded Sony CDP X3000ES, Aune S1 DAC/Digital streamer.
Technics SL1200Mk2 (Modded) : Magnepan Unitrac : AT 33PTG
Ortofon T30 MC step-up, Custom MM WAD Phono3S Tube Phonostage
Custom 6N6p CCS Preamplifier
Custom Class T Balanced mono amps
Modded Thiel CS2.4/Custom 2-way/Aune P3112
To be updated