Making your own transformers? - diyAudio
Go Back   Home > Forums > Loudspeakers > Planars & Exotics

Planars & Exotics ESL's, planars, and alternative technologies

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 July 2005, 05:16 AM   #1
furly is offline furly  Canada
diyAudio Member
 
Join Date: Jul 2005
Location: Calgary, AB.
Send a message via MSN to furly
Default Making your own transformers?

Just wondering if anyone has ever tried winding their own transformers out of Radio Shack transformers such as Sanders suggests.

I am a lowly engineering student looking to complete a set of ESL's at low cost. This being my first attempt at such a task, I am not too concerned with great quality. Mediocre would be great the first time around!!

Any suggestions (particularily on transformers)?
  Reply With Quote
Old 5th July 2005, 09:21 PM   #2
diyAudio Member
 
Join Date: Aug 2003
Location: Calgary on the Bow
Default on the cheap fo while you wind

A buddy of mine just snagged a set of Medalion 0ne plus 0ne Acoustats off of EBay for $57.00 Canadian the pair. Cheapest I have ever seen (in Vancouver). Get a pair of these and play with them while you work on rolling your own. Best regards Moray James.
__________________
moray james
  Reply With Quote
Old 18th July 2005, 01:44 PM   #3
EC8010 is offline EC8010  United Kingdom
diyAudio Moderator Emeritus
 
EC8010's Avatar
 
Join Date: Jan 2003
Location: Near London. UK
My experience from making E/S headphones is that the hard bit is making the diaphragm and insulating spacers so that the charge actually ends up all over the diaphragm rather than quietly leaking away somewhere. My point is that the problem with electrostatic loudspeakers is not getting mediocre versius superb sound quality - it's getting them working at all! If you had a push-pull valve amplifier, you could connect the loudspeakers to the primaries of the output transformers. Try hunting for an old push-pull amplifier.
__________________
The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...
  Reply With Quote
Old 18th July 2005, 03:09 PM   #4
expert in tautology
diyAudio Member
 
bear's Avatar
 
Join Date: Apr 2002
Location: New York State USA
Sander's instructions will work.

They don't need to be any particular brand of transformers as long as you have a pair and the core material is M6 or (better) "Permalloy".

You can often simply take a standard tube output transformer and make it work fine. Sanders used to sell xfmrs that are/were essentially that. You do need to note the requisite step up turns ratio for your speakers that will match the step down *impedance* ratio of the output transformers. You'll be running them in reverse, of course.

But, yes you can wind your own, if you have time, take care and have some basic materials and a little knowledge.

Moray, that's incredibly cheap for the Acoustat's!
Every once in a while there is a bargain on ePay.

_-_-bear
__________________
_-_-bear
http://www.bearlabs.com -- Btw, I don't actually know anything, FYI -- [...2SJ74 Toshiba bogus asian parts - beware! ]
  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
Making PCB's audioPT Parts 12 3rd April 2012 05:40 PM
Help identifying a pair of output transformers and power transformers mjk130 Parts 3 30th January 2009 10:44 AM
Making your own PCB's pjpoes Parts 15 6th July 2007 08:44 PM
I am really bad at making PCB's triden Parts 20 25th March 2006 07:12 AM


New To Site? Need Help?

All times are GMT. The time now is 12:28 PM.


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