Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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 17th April 2013, 04:38 PM   #1
Hikari1 is offline Hikari1  United States
diyAudio Member
 
Join Date: Jun 2012
Location: Seattle
Default Single Primary Transformer wiring help

I am almost ready to hook up my F5 PS to 120V (US).

My transformer has a single primary. I've looked at the Pass PSU schematic which shows wiring for a dual primary transformer. It's got me confused on to how to hook up my single primary transformer.

Is the attached diagram the appropriate way? My transformer has on black primary (I assume it is LIVE) and one white primary (I assume it's N).

Let me know what you think. Thanks.
Attached Images
File Type: jpg hikariPS.jpg (180.3 KB, 150 views)
File Type: jpg F5PSUGround.jpg (88.6 KB, 144 views)
  Reply With Quote
Old 17th April 2013, 05:43 PM   #2
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
that left pic is ok , even if I'm slightly confused with two black elipses ; if they're thermistors , you need just one
__________________
my Papa is smarter than your Nelson !
tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb ; Papatreasure
  Reply With Quote
Old 17th April 2013, 06:16 PM   #3
Hikari1 is offline Hikari1  United States
diyAudio Member
 
Join Date: Jun 2012
Location: Seattle
Quote:
Originally Posted by Zen Mod View Post
that left pic is ok , even if I'm slightly confused with two black elipses ; if they're thermistors , you need just one
Just need a thermistor on the LIVE wire to the transformer? Not the Neutral wire?
  Reply With Quote
Old 17th April 2013, 06:26 PM   #4
Mooly is online now Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
The primary circuit is just a series circuit and so the thermistor could go in either side electrically. Conventionally it would go in the live side although the neutral side offers the dubious advantage of the thermistor not being "live" when connected to a correctly polarised mains outlet.
__________________
-------------------------------------------------------
A simulation free zone. Design it, build it, test it.
  Reply With Quote
Old 17th April 2013, 08:23 PM   #5
6L6 is offline 6L6  United States
diyAudio Member
 
6L6's Avatar
 
Join Date: Oct 2010
Location: Denver, Colorado
Just use one thermistor, after the switch, on the Live side of the primary.
__________________
Illustrated Build Guides - Pass F4 - Pass B1 - Pass F5 - Pearl 2 - O2 HPA - Hagerman Bugle 2 - Pass Aleph J - Me at BA '13
  Reply With Quote
Old 17th April 2013, 09:33 PM   #6
Hikari1 is offline Hikari1  United States
diyAudio Member
 
Join Date: Jun 2012
Location: Seattle
Great. Thanks guys. More dumb questions coming soon. I promise.
  Reply With Quote
Old 17th April 2013, 09:51 PM   #7
6L6 is offline 6L6  United States
diyAudio Member
 
6L6's Avatar
 
Join Date: Oct 2010
Location: Denver, Colorado
The ONLY dumb questions are the ones not asked.

__________________
Illustrated Build Guides - Pass F4 - Pass B1 - Pass F5 - Pearl 2 - O2 HPA - Hagerman Bugle 2 - Pass Aleph J - Me at BA '13
  Reply With Quote
Old 18th April 2013, 06:44 AM   #8
Hikari1 is offline Hikari1  United States
diyAudio Member
 
Join Date: Jun 2012
Location: Seattle
Quote:
Originally Posted by 6L6 View Post
The ONLY dumb questions are the ones not asked.

That's good to know. Because I haven't even started asking about wiring the rectifiers yet.
  Reply With Quote
Old 18th April 2013, 07:12 AM   #9
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
Audio Electronics, Second Edition: John Linsley Hood: Amazon.com: Kindle Store
__________________
my Papa is smarter than your Nelson !
tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb ; Papatreasure
  Reply With Quote
Old 18th April 2013, 08:28 PM   #10
6L6 is offline 6L6  United States
diyAudio Member
 
6L6's Avatar
 
Join Date: Oct 2010
Location: Denver, Colorado
Quote:
Originally Posted by Hikari1 View Post
That's good to know. Because I haven't even started asking about wiring the rectifiers yet.
This might help -

Click the images to make them the proper size, and the text more readable.


Click the image to open in full size.
This shows the INPUT edge (from the diode bridges)

Click the image to open in full size.

Click the image to open in full size.
Here you can see the bridges with the wires attached from the transformer secondary. Remember that the green attached to a bridge must have continuity with the blue attached to the same bridge. (As it's the 2 ends of the same piece of wire)
__________________
Illustrated Build Guides - Pass F4 - Pass B1 - Pass F5 - Pearl 2 - O2 HPA - Hagerman Bugle 2 - Pass Aleph J - Me at BA '13
  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
Can MOV (varistors) be wired to each primary in a universal dual-primary transformer? fualcr Power Supplies 2 11th November 2012 01:34 AM
F5 Single Primary Transformer NV&H Pass Labs 15 28th June 2009 09:57 PM
Can I use a single primary 120V transformer with 240V? hershann Power Supplies 6 24th January 2008 02:02 PM


New To Site? Need Help?

All times are GMT. The time now is 06:36 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