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 5th February 2012, 09:30 AM   #1
diyAudio Member
 
Join Date: Nov 2011
Location: Philippines
Default Question about transformers?

i have 29-0-29 volts transformer. i'm from philippines. our voltage from outlet is 220v, but i have this large transformer with 100v labeled in the primary. can i use 110 to 220v converter?

one more question. i have this another transformer with black, green, yellow, white and red color leads. can you tell me what this color codes stand for?
  Reply With Quote
Old 5th February 2012, 09:38 AM   #2
diyAudio Member
 
Join Date: Nov 2011
Location: Philippines
Default picture.

here it is.

i think it is 110 to 220 volts converter. but the leads are confusing.
Attached Images
File Type: jpg DSC04679.jpg (365.3 KB, 187 views)
  Reply With Quote
Old 5th February 2012, 02:07 PM   #3
GloBug is offline GloBug  Canada
Banned
 
Join Date: Jun 2011
Do you have a multi-meter? (DMM)
  Reply With Quote
Old 5th February 2012, 02:10 PM   #4
diyAudio Member
 
KatieandDad's Avatar
 
Join Date: Nov 2011
Location: UK
How much power are you trying to employ from the final transformer ?

Looking at the photo I think you would be better off buying a new transformer.
  Reply With Quote
Old 5th February 2012, 02:23 PM   #5
diyAudio Member
 
Richard Ellis's Avatar
 
Join Date: Sep 2006
Location: Mar del Plata, a BIG seasonal getaway city, can see the Ocean from our residence.
Yes I would think you could stand to get a replacement for this transformer.
Look at where the wires are coming from....those holes in the four corners are suppose to have nuts & bolts squeezing the lamination stack together,
If you have a choice, get a true 220-110? step down transformer.....The bulk of the 'conversion transformers are what's called "Auto-Transformer"s.
Try to get a "true" transformer with both Primary and secondary windings, not the common windings of an Auto-Transformer.

__________________________________________________ ________Rick.......
  Reply With Quote
Old 5th February 2012, 02:25 PM   #6
diyAudio Member
 
KatieandDad's Avatar
 
Join Date: Nov 2011
Location: UK
Are you trying to replace it or just use it ?
  Reply With Quote
Old 6th February 2012, 12:28 AM   #7
diyAudio Member
 
Join Date: Nov 2011
Location: Philippines
it has a cover. i thought that if i will remove the cover i will got the primary and secondary winding. but that is what I've got. step down transformers are expensive here. i just want to use it for my 100 volt amp.
  Reply With Quote
Old 28th February 2012, 04:28 AM   #8
diyAudio Member
 
Join Date: Jan 2006
Location: makati
You can use a 220v to 100v (and not the common 110 v out) auto transformer. If you are using it for audio (obviously since you're on DIY audio), consult the power rating of the audio product on the back label and note its power rating in watts. Your converting transformer should be larger than the rated consumption. Try getting a 100 v output converter if you can, doing math you will get approx 5-10% higher voltage on the secondary if you use the common 220 - to - 110 converter.
YOU CAN USE approx. 500- w converter to be safe.

PS. Don't use PC AVRs w/ 110v outlets they're for low wattage consumption only!
  Reply With Quote
Old 14th March 2012, 02:12 AM   #9
AJT is offline AJT  Philippines
diyAudio Moderator
 
AJT's Avatar
 
Join Date: May 2003
Location: Palatiw, Pasig City
Quote:
Don't use PC AVRs w/ 110v outlets they're for low wattage consumption only!
agreed, they are completely useless....
  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
Question about toroidal transformers 00940 Power Supplies 15 19th February 2009 03:21 AM
Question about chip amp with different type of transformers??? Leolabs Chip Amps 3 5th September 2007 07:30 PM
Question about matching impedances and transformers. JoeBob Parts 3 29th November 2004 12:49 AM
Transformers and other Newbie question NaftaliG Chip Amps 1 19th July 2003 07:36 PM
quick question on transformers SQ Kid Chip Amps 5 24th April 2003 10:05 PM


New To Site? Need Help?

All times are GMT. The time now is 11:10 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