Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Return to Tweakers' Asylum

Message Sort: Post Order or Asylum Reverse Threaded

Capacitor Voltage

68.6.217.195
Posted on January 2, 2021 at 20:41:41
pictureguy
Audiophile

Posts: 22597
Location: SoCal
Joined: October 19, 2008
 I'm going thru a VINTAGE Kenwood KA-7100 integrated amp.

Caps LOOK fine but I'm scared to apply voltage to the unit until I re-cord and get some contact cleaner ready.

But ONE question. While the PS Caps LOOK fine, no bulges or leaks, I'm looking for a backup.
Stock pieces are ELNA, a good brand.
I can get Nichicon, in 50v with but can't get EXACT lead spacing.

What If I could get HIGHER voltage? Would that make a difference? Amp doesn't or DIDN'T run hot so I'm going to stick with 85c.

Any suggestions for a good 6800uf cap? NTE any good? I think I can source those locally.....
Too much is never enough

 

Hide full thread outline!
    ...
Using higher than rated voltage caps is fine, posted on January 3, 2021 at 06:27:07
1973shovel
Audiophile

Posts: 10117
Location: Greenville SC
Joined: February 25, 2007
 And be aware that capacitor heating isn't limited to the external environment they're subjected to. High ripple current also heats the caps from within, so don't dismiss 105 ºC rated caps if you find them otherwise acceptable (size, quality, etc.).

 

RE: Capacitor Voltage, posted on January 3, 2021 at 13:08:00
tweaker456
Audiophile

Posts: 7744
Location: SF Bay Area
Joined: June 20, 2020
 I would use an audio grade cap with some reputation. Maybe the Nichicon KW or maybe someone else has some experience?

So let us stop talkin' falsely now, the hour's getting late --
Robert Allen Zimmerman

 

RE: Capacitor Voltage, posted on January 3, 2021 at 14:02:58
pictureguy
Audiophile

Posts: 22597
Location: SoCal
Joined: October 19, 2008
 Problem MAY be if they fulfill 3 conditions?
1. 6800uf
2. 50v
3. Radial leads.....15mm apart would be NICE

Not all caps are available in all values / voltages or termination.
However? Nichicon SEEMS to be the 'best bet'....though what an 'audio grade' IS, remains to be discovered.....

Would a HIGHER voltage be OK? Lots of room in the case....
Too much is never enough

 

RE: Capacitor Voltage, posted on January 3, 2021 at 15:17:44
tweaker456
Audiophile

Posts: 7744
Location: SF Bay Area
Joined: June 20, 2020
 Higher voltage is fine. The Nichicon KW's are radial and looks like 10mm apart. I see no problem with that. Just bend or spread the leads apart. My guess is that there isn't a whole lot of choice for this cap in "audio grade". The KW's are ET approved.




So let us stop talkin' falsely now, the hour's getting late --
Robert Allen Zimmerman

 

RE: Capacitor Voltage, posted on January 3, 2021 at 19:17:01
pictureguy
Audiophile

Posts: 22597
Location: SoCal
Joined: October 19, 2008
 I'll look into that particular series.
I see a BEWILDERING variety, even from the 5 or 6 'top tier' manufacturers......
Anything in Panasonic Computer Grade caps that'd work?
Too much is never enough

 

RE: List on Nichicon audio caps, posted on January 4, 2021 at 10:32:59
tweaker456
Audiophile

Posts: 7744
Location: SF Bay Area
Joined: June 20, 2020
 Nichicon, a famous Japanese capacitor manufacturer, has a wide range of products. The main audio capacitor series are GB, DB, BP, KZ, KG, KW, FG, FW, VR, HD, etc. These products are developed for audio equipment. Reliable quality and excellent performance, it is very suitable for use in audio equipment circuits. In recent years, it has also been recognized by Hi-End audio manufacturers such as MBL, Krell, ONKYO, etc., and is widely used in its reference products.
3. Nichicon KG series capacitors are divided into three grades, and Type II is a premium product in Gold Tune.
4. Data sheet: http://www.nichicon-us.com/english/products/pdfs/e-kg.pdf

Don't see any Panos upon a quick look. You can use almost anything that measures ok but once again, I would stay with an audio grade cap. The KW stands out so far.

So let us stop talkin' falsely now, the hour's getting late --
Robert Allen Zimmerman

 

RE: Capacitor Voltage, posted on January 4, 2021 at 10:43:53
tweaker456
Audiophile

Posts: 7744
Location: SF Bay Area
Joined: June 20, 2020
 Digi-Key has the KW. You can get stuff from Digi-Key with free shipping if you go through the trouble of calling them and sending them payment in advance.
So let us stop talkin' falsely now, the hour's getting late --
Robert Allen Zimmerman

 

RE: KW review, posted on January 4, 2021 at 10:47:55
tweaker456
Audiophile

Posts: 7744
Location: SF Bay Area
Joined: June 20, 2020
 Reply With Quote
Old 8th January 2014, 11:27 AM #5
beauty_divine is offline beauty_divine Bulgaria
diyAudio Member

Join Date: Sep 2006
I decided that I must share my final conclusions after the very first disappointing impressions from my new KW series from Nichicon.
Briefly - it took at least 2 weeks (!) of constant working to start giving me the sound quality that I paid for. Even now they go on improving their exceptionally nice sound performance. And now KW are really far from FW as to sound quality. The very first words that came into my head after listening to them again were: they play with exceptional ease. Voices and acoustic instruments are reproduced with natural ease and lightness like a breath of a child. KW present a nice merit - very high detail without being annoying.
And the main conclusion I made for myself from this is: the higher the sound quality of the parts the longer the time the parts take to settle to its best performance.
So let us stop talkin' falsely now, the hour's getting late --
Robert Allen Zimmerman

 

Page processed in 0.019 seconds.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]