PS Audio Linear Control Center and Phono III - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 16th May 2009, 03:48 PM   #1
diyAudio Member
Join Date: Nov 2006
Default PS Audio Linear Control Center and Phono III

Hey all. I got this preamp yesterday and the phono stage totally outshined my Cambridge Audio 540P phono pre.

As for the Linear control center, well it's got issues. After a thorough clean-out with DeOxit on the pot's and controls, it has a low background hum (about 60Hz I guess).

Now I would automatically suspect the filter cap's but the transformer (EI core) is vibrating a bit. I think this is a part of my issue. I cannot tighten it though since it appears to be permanently bonded to the bottom of the pre's case.

Does anyone know where I should start with this? I have no prints or schematics on it.
  Reply With Quote
Old 16th May 2009, 05:26 PM   #2
diyAudio Member
analog_sa's Avatar
Join Date: Aug 2002
Location: Cascais
Have a look at the supply rails with a scope. With the input shorted try to establish at what stage does the hum become visible. And also make sure there is no dc at output.

If you don't have a scope you will need to do some thinking or a lot of trial and error. Pictures?
  Reply With Quote
Old 16th May 2009, 09:21 PM   #3
diyAudio Member
Join Date: Nov 2006
Apparently the problem was that the preamp was on top of my Furman line conditioner. It is dead quiet elsewhere.

But, considering how uninterested you all seem to be in it, I'll probably just get rid of it.
  Reply With Quote


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
Tone Control Center Frequencies? Zero Cool Everything Else 3 15th June 2009 03:13 AM
Vista Media Center wifi Remote control justblair Digital Line Level 2 8th January 2009 03:57 PM
eCircuit Center on Design of Audio Amp davidallancole Solid State 1 7th May 2008 04:40 PM
Monitor Audio CC700 Center Channel Speaker on EBAY vollandt Swap Meet 0 21st January 2002 03:12 PM

New To Site? Need Help?

All times are GMT. The time now is 06:42 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2