Motor Run vs. Solen in TSE - 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 23rd January 2011, 02:23 PM   #1
jeffx is offline jeffx  United States
diyAudio Member
 
Join Date: Jun 2006
Default Motor Run vs. Solen in TSE

I am beginning to gather the parts for my Tubelab SE build. For the PS bypass cap I am considering either a Sprague motor run oil cap(370v 100uF) or a Solen cap(400v 100uF). They are about the same price($28) when s&h is considered.

Anyone compared these? Other options at this price point?
  Reply With Quote
Old 23rd January 2011, 04:02 PM   #2
diyAudio Member
 
Join Date: Apr 2007
I would go with 400V if using 300B tubes.
  Reply With Quote
Old 23rd January 2011, 04:10 PM   #3
jeffx is offline jeffx  United States
diyAudio Member
 
Join Date: Jun 2006
Thanks for the reply. I should have mentioned that I will be using 300B's.
  Reply With Quote
Old 23rd January 2011, 04:18 PM   #4
diyAudio Member
 
Join Date: Feb 2008
Location: Niederösterreich
The motor run is probably 370v AC which means quite a bit higher rating for DC. Motor runs are normally preferred over the solens as they are oil filled and might have a lower ESR than the solen. Not sure. OH, and they just look cooler
  Reply With Quote
Old 23rd January 2011, 04:30 PM   #5
jeffx is offline jeffx  United States
diyAudio Member
 
Join Date: Jun 2006
The motor run caps are 370vac and 650vdc.
  Reply With Quote
Old 23rd January 2011, 05:09 PM   #6
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
I would use whichever fits/looks the best, if the price is about the same. I don't know which would have the lowest ESR, as it depends on the construction of the cap. The difference is probably not significant.
  Reply With Quote
Old 5th March 2011, 07:42 PM   #7
diyAudio Member
 
Join Date: Jun 2010
Location: SE Pennsylvania
Very interesting question, it made me think about these Obbligato film oil caps. I wonder if I can use them as supplemental power supply cap with my Simple SE.

Unlike the solen's these are oil filled. I read somewhere these have low induction; I don't know what that means but thought I should write it here.
Obbligato Film Oil 70uF 630V | Diy HiFi Supply

How different are these technically from motor run caps? Motor run caps will sound better than these obbligato's no matter what?
  Reply With Quote
Old 5th March 2011, 07:50 PM   #8
Gluca is offline Gluca  Italy
diyAudio Member
 
Gluca's Avatar
 
Join Date: Nov 2004
Location: Back to Italy
I have been using in my PSUs sturdy and reliable and cheap and indeed very good ASC capacitors since ages. No coming back. Bulky but worth every penny.
  Reply With Quote
Old 5th March 2011, 08:00 PM   #9
lth1 is offline lth1  United States
diyAudio Member
 
Join Date: Nov 2009
Location: Homer, Alaska
IMHO (and all cap comparison test that I have read) the best sounding motor run power supply caps are ASC, which actually use oil, most of the other motor run caps use a gel. It would be interesting to know if this is what makes the ASC a better sounding cap over the Dayton and other gel motor run caps.

Lee Hankins
  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 caps? albireo13 Tubelab 12 5th March 2010 09:35 AM
motor run caps grahamb Tubes / Valves 3 18th September 2009 12:14 AM
motor run capacitor milen007 Parts 12 28th June 2008 06:49 PM
Motor Run Capacitor Zap Tubes / Valves 2 14th May 2008 10:59 PM
dual value motor run caps wicked1 Tubes / Valves 4 6th February 2008 10:37 PM


New To Site? Need Help?

All times are GMT. The time now is 10:52 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