Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

Questions about amp camp amp and linear power supply
Questions about amp camp amp and linear power supply
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
Reply
 
Thread Tools Search this Thread
Old 5th February 2018, 10:50 AM   #21
AndrewT is offline AndrewT  Scotland
R.I.P.
 
Join Date: Jul 2004
Location: Scottish Borders
Those high measurement values must be at the PSU.
It would help you and us a lot to also see the measurement values at the speaker output terminals. With the inputs shorted and with the source connected.
__________________
regards Andrew T.
  Reply With Quote
Old 9th February 2018, 06:03 PM   #22
kking85743 is offline kking85743
diyAudio Member
 
Join Date: Jan 2017
Location: Desert SouthWest, USA
Sorry, should have specified: the measurements were taken at the power supply with the amp on, no input (pre-amp off) and speakers plugged in. As close to nominal use case as possible. Also, Amp was warmed up.

I will check what it looks like at the speaker's early next week.
  Reply With Quote
Old 17th February 2018, 07:37 PM   #23
kking85743 is offline kking85743
diyAudio Member
 
Join Date: Jan 2017
Location: Desert SouthWest, USA
Quote:
Originally Posted by kking85743 View Post
Sorry, should have specified: the measurements were taken at the power supply with the amp on, no input (pre-amp off) and speakers plugged in. As close to nominal use case as possible. Also, Amp was warmed up.

I will check what it looks like at the speaker's early next week.
Ok, the data is pretty simple. Almost no variance between sides, or between inputs (present w/ preamp off, shorted, open), and almost no difference with or without speakers plugged in. I am also including self-noise values for the cheap USB scope (probe attached, but not shorted) for comparison:

Questions about amp camp amp and linear power supply-capture-png

My guess is that this is beyond good enough (15mV peak to peak above self-noise, and no RMS difference over self-noise), and that I should put my effort into building speakers rather than building a Power Supply filter. Or saving for a better scope...
Attached Images
File Type: png Capture.PNG (40.0 KB, 225 views)
  Reply With Quote

Reply


Questions about amp camp amp and linear power supplyHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Linear power supply Jolida Power Supplies 7 13th October 2016 07:10 AM
Linear Power Supply for Amp Camp Boards (Question) Jennifer G Pass Labs 18 7th June 2016 04:44 PM
Camp Amp and power supply stenak Pass Labs 5 7th April 2016 09:01 PM
Power One 5v 3A linear power supply SilverStrings Swap Meet 0 23rd September 2010 06:06 AM
Power One 12V 10A linear power supply boywonder Swap Meet 0 11th September 2010 03:38 PM


New To Site? Need Help?

All times are GMT. The time now is 02:01 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki