Quick primary check pls (diagram) - diyAudio
Go Back   Home > Forums > Amplifiers > Power Supplies

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 31st May 2013, 08:56 PM   #1
diyAudio Member
 
redrabbit's Avatar
 
Join Date: Oct 2004
Default Quick primary check pls (diagram)

I called the manufacturer, and got the primary voltages for each wire on this power transformer.
Is my diagram correct for typical 120v/60Hz ? (USA)
(700VA) !!

Choices:

A) yes.
B) no.
C) no, but try it....you should know this stuff by now.
D) Yes, but after converting the 72v secondaries to DC, you will possibly die a noble death.

Click the image to open in full size.

Last edited by redrabbit; 31st May 2013 at 09:02 PM.
  Reply With Quote
Old 31st May 2013, 09:43 PM   #2
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
Looks OK, provided of course that you have correctly understood what the manufacturer told you and they correctly built the transformer.

Build and use a lamp limiter whenever first trying a new PSU on the mains.
  Reply With Quote
Old 31st May 2013, 10:22 PM   #3
diyAudio Member
 
redrabbit's Avatar
 
Join Date: Oct 2004
Thanks.
I also have an autotransformer, and I'll ramp up the input voltage slowly during a no-load test.
  Reply With Quote
Old 2nd June 2013, 01:46 PM   #4
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
use a bulb tester.
It protects from damage much better.
__________________
regards Andrew T.
  Reply With Quote
Old 5th July 2013, 06:15 AM   #5
diyAudio Member
 
redrabbit's Avatar
 
Join Date: Oct 2004
Thanks AndrewT and DF96, I will.

BTW, This transformer is the "MARK LEVINSON Toroidal Transformer Ultra- Low Noise" found on eBay (US).....so if anyone is wondering the what the primary wires are, these are them. (slide the sheathing down, to see wire colors).
  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
Check my wiring diagram saabracer23 Multi-Way 1 10th July 2012 04:02 PM
Please check my wiring diagram... eisenhower Multi-Way 13 16th October 2006 07:30 PM
some quick help PLS v1d9uy Multi-Way 4 11th January 2006 05:18 PM
Pls Check PCB for OPA541... JojoD818 Chip Amps 9 18th October 2003 07:29 PM


New To Site? Need Help?

All times are GMT. The time now is 08:53 AM.


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