Toroidal transformer potting can - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

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 12th February 2008, 01:04 AM   #1
diyAudio Member
 
jamesjung21's Avatar
 
Join Date: Dec 2003
Location: New Zealand
Default Toroidal transformer potting can

Hi,

Does anyone know where I can find a round can for potting a toroidal transformer? I'm not planning to seal it with epoxy and leave plenty of ventilation holes on the bottom for heat generated.

I thought this is the most appropriate place to ask, because we are the ones who love to mount things on top of chassis
  Reply With Quote
Old 12th February 2008, 01:38 AM   #2
diyAudio Member
 
benchtester's Avatar
 
Join Date: Apr 2007
Location: Oakland, Calif.
I think you are on the right track, I did some mu-metal shields and then completely encapsulated them in epoxy. It was more trouble than it was worth.

For small toroids (<100 VA) I am looking at using speaker driver shields, either bought or salvaged. I, too, would be interested in a source for covers/shields for larger toroids (300 to 400 VA).
  Reply With Quote
Old 12th February 2008, 02:00 AM   #3
diyAudio Member
 
Join Date: Apr 2006
Location: Side A
Speedy metals (https://www.speedymetals.com/default.aspx) will sell you a chunk of aluminum in many different diameters, thicknesses and whatever height you choose. It's an inexpensive fix if you have the flexibility to mount using a bracket or tiny bolts.
  Reply With Quote
Old 12th February 2008, 06:01 AM   #4
Stixx is offline Stixx  Germany
I am
diyAudio Member
 
Stixx's Avatar
 
Join Date: Sep 2003
Location: Southern Germany
I used a stainless steel outdoor cup as can for a transformer...but they only come in diameters up to about 10cm.
  Reply With Quote
Old 12th February 2008, 07:23 AM   #5
dhaen is offline dhaen  Europe
diyAudio Moderator Emeritus
 
dhaen's Avatar
 
Join Date: Jun 2002
Location: U.K.
Default These are only small...

VT4C

80mm (3.15") Diameter External, 70mm (2.76") diameter internally
50mm (1.97) Tall, 36mm (1.42") tall internally
Weight :315 (gram/Set)
Size (mm): 80 dia x 50 tall


Click the image to open in full size.
$12ea + shipping from Hong Kong
  Reply With Quote
Old 12th February 2008, 07:25 AM   #6
Vek
Guest
 
You can also get it here:

http://www.askjanfirst.com/

They have two versions, one made from metal (http://www.askjanfirst.com/kb/TRAZ10.jpg) and one made from polyamide (http://www.askjanfirst.com/kb/TRAZ20.jpg).

Greets
  Reply With Quote
Old 12th February 2008, 08:15 AM   #7
AuroraB is offline AuroraB  Norway
diyAudio Member
 
AuroraB's Avatar
 
Join Date: May 2001
Location: Norway, -north of the moral circle..
Default Re: These are only small...



Click the image to open in full size.



This must be a sure no-no

With the center thru-bolt it will create a shorted turn
  Reply With Quote
Old 12th February 2008, 09:02 AM   #8
dhaen is offline dhaen  Europe
diyAudio Moderator Emeritus
 
dhaen's Avatar
 
Join Date: Jun 2002
Location: U.K.
I don't believe the bolt is intended to touch the enclosure top...
Hopefully the top is a "push fit" onto the bottom.
  Reply With Quote
Old 12th February 2008, 09:42 AM   #9
poynton is offline poynton  United Kingdom
diyAudio Member
 
poynton's Avatar
 
Join Date: Mar 2005
Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)
there was a site in HK that had loads of transformer cans in various sizes - they were on Ebay listed as "chassis".

Typically, I cannot find the reference!!!
  Reply With Quote
Old 20th February 2008, 01:49 AM   #10
diyAudio Member
 
jamesjung21's Avatar
 
Join Date: Dec 2003
Location: New Zealand
Quote:
VT4C

80mm (3.15") Diameter External, 70mm (2.76") diameter internally
50mm (1.97) Tall, 36mm (1.42") tall internally
Weight :315 (gram/Set)
Size (mm): 80 dia x 50 tall
I knew about the round can from VT4C.com but they are far too small to even fit a 20VA toroidal transformer.

Quote:
You can also get it here:

http://www.askjanfirst.com/

They have two versions, one made from metal (http://www.askjanfirst.com/kb/TRAZ10.jpg) and one made from polyamide (http://www.askjanfirst.com/kb/TRAZ20.jpg).

Greets
I am trying to pot a 160VA or a 300VA and thought that http://www.askjanfirst.com/ as suggested by Vek, but shipping quote was unimpressive for a single plastic pot.

Quote:
I used a stainless steel outdoor cup as can for a transformer...but they only come in diameters up to about 10cm.
I like that approach Is there any other everyday life objects that can serve as a good looking potting can?
  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
Transformer potting material?? ThSpeakerDude88 Tubes / Valves 9 6th August 2006 10:14 PM
neophyte - transformer potting ofb Tubes / Valves 13 13th December 2004 09:03 AM
FS: 18-0-18v Toroidal Transformer and More... Maples Swap Meet 12 7th August 2004 12:44 PM
Toroidal Transformer sma Solid State 3 3rd February 2004 07:55 PM
WTB:toroidal transformer sma Swap Meet 1 3rd February 2004 12:21 AM


New To Site? Need Help?

All times are GMT. The time now is 03:48 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