[ASK] Rewinding toroid transformer - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 3rd June 2008, 02:37 AM   #1
diyAudio Member
 
Join Date: May 2008
Default [ASK] Rewinding toroid transformer

I got three 300VA toroid transformer from my father's junk box with a primary AC 117VAC. Here in my country we use 220VAC main AC. How to calculate windings for primary and secondary to convert this transformer primary to 220VAC and 18V-0-18V secondary?

can someone help me for calculation.

the easiest way is to use a step down transfmormer of course.

thanks
  Reply With Quote
Old 3rd June 2008, 08:34 AM   #2
ECM is offline ECM  United States
diyAudio Member
 
Join Date: Jul 2004
Location: Dubai
Use two of them at the same time and wire the primaries in series.

What are the specs on the transformers? Center tapped? Output voltage?
  Reply With Quote
Old 3rd June 2008, 01:46 PM   #3
diyAudio Member
 
Join Date: May 2008
sorry it was a 180VA transformer if my calculations correct,

primary is 117VAC, and 2x15VAC secondary 6Amp.
  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
rewinding secondary on toroid guitar_joe Power Supplies 10 23rd November 2007 11:09 AM
Bad transformer rewinding ostie01 Solid State 16 18th May 2006 09:08 AM
Rewinding Microwave Transformer 6502dude Power Supplies 5 3rd April 2005 04:06 PM
Transformer Rewinding JhonDoe Parts 3 1st March 2005 12:15 PM
Rewinding a Toroid transformer hifi Parts 8 6th September 2001 12:50 AM


New To Site? Need Help?

All times are GMT. The time now is 03:57 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