Edcor (O)PT vs tubelab's color codes? - 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 3rd September 2010, 08:23 PM   #1
Divad89 is offline Divad89  Denmark
diyAudio Member
 
Join Date: Feb 2010
Default Edcor (O)PT vs tubelab's color codes?

I've just received my Edcor transformers (XPWR059 and CXSE25-4-5K), and would just know whether the color codes tubelab uses are the same as the color codes Edcor uses, because there are some of them which is different...


---
David
  Reply With Quote
Old 3rd September 2010, 09:48 PM   #2
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
You have to look at the label they give you. George's colors apply to Allied/Hammond which tend to follow some of the old conventions. Edcor does too, but not so much for the power transformers.

You should be able to figure it out from the label. If not, post pictures of the labels and we can help you map out the terminals.
  Reply With Quote
Old 4th September 2010, 05:13 AM   #3
diyAudio Member
 
Join Date: Jan 2010
Location: Victoria, BC
On the CXSE25s the red & blue are the same as on Tubelab wiring diagrams. Yellow is positive, white is negative.

I used the XPWR035 which is slightly different than your 059. However the colour scheme looks the same. So the differences are:
Edcor Black/Red = Tubelab Red-Yellow
Edcor Brown = Tubelab Green

You don't use the center taps for the yellow (white/yellow) or the brown (white/brown). Likewise you won't need the Grey wires.
__________________
Flemming
  Reply With Quote
Old 4th September 2010, 07:08 AM   #4
Divad89 is offline Divad89  Denmark
diyAudio Member
 
Join Date: Feb 2010
Thanks that helped a lot, think I can do it now...

---
David
  Reply With Quote
Old 4th September 2010, 08:36 PM   #5
Divad89 is offline Divad89  Denmark
diyAudio Member
 
Join Date: Feb 2010
After studying tubelab's description and Edcor's shouldn't it be this way:

Tubelab = Edcor

Yellow (5v rectifier filament winding) = Brown (2.5v x 2)
Red (high voltage AC) = Red (375v)
Red/yellow (center tap for high voltage winding) = Black/red (C.T)
Green (6.3v filament) = Yellow (3.15v x 2)

You can see the specification for the transformers here:

http://www.edcorusa.com/Images/Products/SCM/XPWR059.png
http://www.edcorusa.com/Images/Products/SCM/CXSE-4.png

---
David
  Reply With Quote
Old 4th September 2010, 08:45 PM   #6
diyAudio Member
 
Join Date: Jan 2010
Location: Victoria, BC
Quote:
Originally Posted by Divad89 View Post
After studying tubelab's description and Edcor's shouldn't it be this way:

Tubelab = Edcor

Yellow (5v rectifier filament winding) = Brown (2.5v x 2)
Red (high voltage AC) = Red (375v)
Red/yellow (center tap for high voltage winding) = Black/red (C.T)
Green (6.3v filament) = Yellow (3.15v x 2)
YES! My bad I assumed that Edcor would use the yellow and brown wires for the same thing across transformers. On the XPWR035 the Brown are for 6.3v and the yellow are for 5v. The reverse of your XPWR059
__________________
Flemming
  Reply With Quote
Old 5th September 2010, 07:45 AM   #7
Divad89 is offline Divad89  Denmark
diyAudio Member
 
Join Date: Feb 2010
Yeah can't understand why Edcor doesn't use the same color codes with all their transformers.
Btw how do I connect the PT to my power receptacle (live in Denmark=240v), I have a type K outlet (no polarity), on the specification for the XPWR059 there is:

Black/white+green
Black (input voltage)
Green/white (common)

---
David
  Reply With Quote
Old 5th September 2010, 02:59 PM   #8
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
As I mention earlier, Edcor is a little inconsistent on their power transformers. If you could post a pic of the label, we could make sure that you hook it up right.
  Reply With Quote
Old 5th September 2010, 03:58 PM   #9
diyAudio Member
 
Join Date: Jan 2010
Location: Victoria, BC
Quote:
Originally Posted by rknize View Post
As I mention earlier, Edcor is a little inconsistent on their power transformers. If you could post a pic of the label, we could make sure that you hook it up right.
See post #5
__________________
Flemming
  Reply With Quote
Old 6th September 2010, 02:39 AM   #10
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
Sorry, missed that. You want to connect the black/white wire to the green wire and insulate the connection. Connect your mains to black and to the green/white wire. Polarity doesn't matter.
  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
Tubelab's own forum bigjppop Tubes / Valves 0 29th December 2009 12:37 AM
Strange resistor color codes Davide82 Parts 5 17th January 2009 09:46 AM
Sprague/Cap Color Codes ? Trout Tubes / Valves 4 13th August 2005 04:06 PM
Color codes on transformer Anders DK Solid State 10 29th October 2002 04:29 AM


New To Site? Need Help?

All times are GMT. The time now is 12:31 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