Motor run cap failure - Page 3 - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Tubelab

Tubelab Discussion and support of Tubelab products, prototypes and experiments

Reply
 
Thread Tools Search this Thread
Old 11th April 2013, 07:47 AM   #21
diyAudio Member
 
Join Date: Jan 2012
2x Solen 47uF 400V Axial MKP Film Capacitor | eBay

Will do the trick? I have the space to fit two so I achieve the higher value and these are good value.
  Reply With Quote
Old 19th April 2013, 05:29 PM   #22
diyAudio Member
 
Join Date: Sep 2007
Try this one... Just got one recently for an SE build:
Run Capacitor 100 MFD 370V Round AC Electric Motor HVAC 370 Vac V Volts 100 Uf | eBay

Cheers,
Bob
  Reply With Quote
Old 20th April 2013, 05:47 PM   #23
diyAudio Member
 
Join Date: Jan 2012
I went for this in the end.

Claritycap TC range of PSU polypropylene capacitors homepage

The 70uf item. Compact and well regarded it seems. Probably make no difference but at least I can get it under my chassis!! Once thats in and once I've fitted another CL-90 in the b+ my amp will officially be done.

I've some reissue Mullard EL34's in there at the moment and they're superb. I've tweaked my speakers a bit by adding some wadding to alter the sound and its all really starting to come together. So much so that I'm now looking at the Tubelab SE. I wish I went for that now instead of the simple. I was listening to a Je labs 2a3 equipped set amp a few weeks back and, although I wouldn't say it was better it was considerably different to mine in sound. I might try for a cheap (it never ends up like that) TSE build in order to have the best of everything...
  Reply With Quote
Old 22nd April 2013, 04:09 PM   #24
rknize is offline rknize  United States
diyAudio Member
 
rknize's Avatar
 
Join Date: Feb 2009
Location: Chicagoland
Send a message via AIM to rknize Send a message via Yahoo to rknize
Quote:
Originally Posted by mudchute View Post
I went for this in the end.

Claritycap TC range of PSU polypropylene capacitors homepage

The 70uf item. Compact and well regarded it seems. Probably make no difference but at least I can get it under my chassis!! Once thats in and once I've fitted another CL-90 in the b+ my amp will officially be done.
That looks like the real deal. I actually had found some super compact high-voltage film caps on Mouser or Digikey or the like. I think they are 60uF. They are PCB mount, but can be made to work in a clamp. Sorry, I completely forgot that I had them.

Quote:
Originally Posted by mudchute View Post
I've some reissue Mullard EL34's in there at the moment and they're superb. I've tweaked my speakers a bit by adding some wadding to alter the sound and its all really starting to come together. So much so that I'm now looking at the Tubelab SE. I wish I went for that now instead of the simple. I was listening to a Je labs 2a3 equipped set amp a few weeks back and, although I wouldn't say it was better it was considerably different to mine in sound. I might try for a cheap (it never ends up like that) TSE build in order to have the best of everything...
Haha...yeah that's how it goes. Starting searching for tubes before you invest too much in the TSE design. The input/driver tubes are getting difficult to find for a reasonable price. I wonder if George will redesign that part of the PCB some time and put something more "modern" there.
  Reply With Quote
Old 28th April 2013, 07:45 AM   #25
diyAudio Member
 
Join Date: Jan 2012
Its definitely on the cards for a future project that's for sure. I might do as you suggest and search for driver tubes prior to taking the plunge.

I fitted the 70uf claritycap and its working well. A noticeable improvement over the 100uf motor run cap so definitely recommended

I'm having problems with speakers now though. I'm using frugel horns with ma alpair 7 drivers and on certain mid to high frequency notes they become a bit ear splitting which is a shame as elsewhere they sound superb. I noticed the same when pairing my amp to a friends kef stand mount book shelf speakers, an occasional really bright cringeworthy moment that's got me baffled.
  Reply With Quote
Old 5th May 2013, 04:24 PM   #26
diyAudio Member
 
Join Date: Jan 2013
Hi,

I have a Claritycap TC 220uF 700V and a simpler one NICHICON KX 220uF 450V.
Should i use them both as C5 on my TSE amp? Or only the Claritycap?
Ahh... And why please :-) ?

Thanks
  Reply With Quote
Old 5th May 2013, 11:33 PM   #27
diyAudio Member
 
boywonder's Avatar
 
Join Date: Jan 2008
Location: So.Cal.
Quote:
Originally Posted by ranhaber View Post
Hi,

I have a Claritycap TC 220uF 700V and a simpler one NICHICON KX 220uF 450V.
Should i use them both as C5 on my TSE amp? Or only the Claritycap?
Ahh... And why please :-) ?

Thanks
You can run the caps both ways. 220uf for C5 is adequate, 440uf will give less B+ ripple (hum). If you run them both in parallel you'll get two potential benefits; twice the capacitance and the film cap will have a much lower ESR than an electrolytic.

It's somewhat common to bypass a PS electrolytic with a film cap to reduce ESR.

The best approach is to try the amp with just the 220uf ClarityCap and then both caps in parallel. The caps in parallel will measure better, but let your ears be the judge.
  Reply With Quote
Old 7th May 2013, 05:53 PM   #28
diyAudio Member
 
Join Date: Aug 2012
Location: Poços de Caldas - Minas Gerais
Default Motor run cap option

Hello,

Would this capacitor be a good option for SSE?

Thank you all.
  Reply With Quote
Old 7th May 2013, 06:05 PM   #29
diyAudio Member
 
Join Date: Jan 2012
AS a motor run/supplemental capacitor? If so then no I'm afraid, the one you have there is electrolytic.

That is the same as the one I put in mine initially not realising it was electrolytic (I just saw 'motor run cap' and didn't read on) and it opened up spilling its electrolyte. No good I'm afraid.
  Reply With Quote
Old 7th May 2013, 06:38 PM   #30
diyAudio Member
 
Join Date: Aug 2012
Location: Poços de Caldas - Minas Gerais
Yes, I would use it as auxiliary power supply cap.

I thought all motor run caps are electrolytic. Am I wrong?

My problem is that here in Brazil we do not have anything like it and import fees plus the cost of shipping are completely unfair. A good capacitor that costs about $30 in the USA come here for almost R$160,00.
Totally impractical!

Anyway, thanks mudchut, for the help. I'll keep looking for a good and cheap options.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
motor run cap question Doug R Tubes / Valves 3 26th October 2012 09:58 AM
CBB65 Chinese motor run cap? PreSapian Parts 0 11th January 2012 05:34 PM
Is this motor run cap suitable for SSE? Horsebox Tubelab 11 2nd November 2011 03:03 PM
Eyuda Motor Run Cap?? neonthecat Tubelab 3 5th May 2011 01:38 PM
Source for 100uf motor run cap. audiobliss Tubes / Valves 3 31st July 2008 03:15 AM


New To Site? Need Help?

All times are GMT. The time now is 12:11 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2