Help With SMPS Transformer Size ID

crazifunguy · 4th July 2011, 06:19 AM

I have a SMPS Transformer that is part of a plate amp that took a dive. I am trying to ID the type and size of the core so I can attempt a rewind. I have made a drawing with dimensions but can't seem to find a match.

luka · 4th July 2011, 06:32 AM

similar to etd core, but measurements are a bit off for any ETD core... look for others, and see if any looks the same as yours and has same measurements

wrenchone · 4th July 2011, 07:11 AM

Perhaps an EER35 - a common Far East core size.

crazifunguy · 4th July 2011, 06:07 PM

This core is from a BASH amp in a Klipsch sub. I origionally thought it was an ETD as well but the measurements don't match up. I will look into EER cores. Its a shame that these things dont have any markings.

crazifunguy · 4th July 2011, 06:52 PM

EER35 seems to be the winner. Now comes the fun part finding a core and bobbin to buy.

crazifunguy · 6th July 2011, 05:42 AM

Well I spent a few hours on google and every parts website I could think of. I even checked ebay. Transformer cores and bobbins just dont seem to be easily available. I checked about 15 different manufacturers and the EER35 ER35 cores are about as close as i can find for a match.

Does anyone know where I could find one of these cores and a vertical bobbin with 14 pins?

What are the chances that this thing will even work with the core being a little different? I plan on winding it the exact same way but if I am gonna spend the time to wind it, I want to make sure it will atleast function to some extent.

geraldfryjr · 6th July 2011, 12:40 PM

If the old core is not Damaged you should be able to reuse it. jer

crazifunguy · 6th July 2011, 01:59 PM

The core shattered and the bobbin broke in 2 or 3 different places

ebattleon · 12:28 AM

Did you e mail the manufacturer?

Wrenchone may be right about its origins

crazifunguy · 14th July 2011, 03:40 PM

I will send an email later today fingers crossed

4th July 2011, 06:19 AM	#1
crazifunguy diyAudio Member Join Date: Aug 2008	Help With SMPS Transformer Size ID I have a SMPS Transformer that is part of a plate amp that took a dive. I am trying to ID the type and size of the core so I can attempt a rewind. I have made a drawing with dimensions but can't seem to find a match.

4th July 2011, 06:32 AM	#2
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	similar to etd core, but measurements are a bit off for any ETD core... look for others, and see if any looks the same as yours and has same measurements __________________ home page @ http://www.classdaudio.co.cc @ 24/7 all year long I FEEL SLOVENIA

8th July 2011, 12:13 AM	#9
ebattleon diyAudio Member Join Date: Jun 2011	Did you e mail the manufacturer? Wrenchone may be right about its origins Last edited by ebattleon; 8th July 2011 at 12:28 AM.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
panasonic transformer ID help	bart_dood	Everything Else	1	3rd July 2009 02:12 PM
Help ID this transformer	astouffer	Tubes / Valves	1	2nd December 2007 05:41 AM
how to id transformer VA	2020audio	Power Supplies	5	13th July 2006 12:02 PM
SMPS Transformer Size Selection help	Workhorse	Power Supplies	18	24th November 2005 04:21 AM
Please ID output transformer	Deafboy	Tubes / Valves	3	20th September 2005 02:39 PM


	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

4th July 2011, 07:11 AM	#3
wrenchone diyAudio Member Join Date: Feb 2004 Location: Silicon Valley	Perhaps an EER35 - a common Far East core size.

4th July 2011, 06:07 PM	#4
crazifunguy diyAudio Member Join Date: Aug 2008	This core is from a BASH amp in a Klipsch sub. I origionally thought it was an ETD as well but the measurements don't match up. I will look into EER cores. Its a shame that these things dont have any markings.

4th July 2011, 06:52 PM	#5
crazifunguy diyAudio Member Join Date: Aug 2008	EER35 seems to be the winner. Now comes the fun part finding a core and bobbin to buy.

6th July 2011, 05:42 AM	#6
crazifunguy diyAudio Member Join Date: Aug 2008	Well I spent a few hours on google and every parts website I could think of. I even checked ebay. Transformer cores and bobbins just dont seem to be easily available. I checked about 15 different manufacturers and the EER35 ER35 cores are about as close as i can find for a match. Does anyone know where I could find one of these cores and a vertical bobbin with 14 pins? What are the chances that this thing will even work with the core being a little different? I plan on winding it the exact same way but if I am gonna spend the time to wind it, I want to make sure it will atleast function to some extent.

6th July 2011, 12:40 PM	#7
geraldfryjr diyAudio Member Join Date: Feb 2008 Location: Jackson,michigan	If the old core is not Damaged you should be able to reuse it. jer

6th July 2011, 01:59 PM	#8
crazifunguy diyAudio Member Join Date: Aug 2008	The core shattered and the bobbin broke in 2 or 3 different places

14th July 2011, 03:40 PM	#10
crazifunguy diyAudio Member Join Date: Aug 2008	I will send an email later today fingers crossed

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read