FS: Monstor Toroid Power Transformers - Class A Amps - diyAudio
Go Back   Home > Forums > Commercial Sector > Swap Meet

Swap Meet Sell your stuff here, who knows, some other fanatic might be interested!

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 10th December 2010, 08:22 PM   #1
cuibono is offline cuibono  United States
diyAudio Member
 
cuibono's Avatar
 
Join Date: May 2006
Location: City of Angles
Default FS: Monstor Toroid Power Transformers - Class A Amps

I was given these by a generous 'paternal' benefactor who frequents this board. These were once destined to be used in high-wattage class A amps. Now I know why he gave them away! They've been sitting in my garage for about three years now?

Here are the specs (all AC voltages - final rectified DC will be higher by ~1.4x):

45v-0-45V (so 90Vct) at 1900VA.
-I have two of these, and they weigh about 43lbs each!

40V-30V-0-30V-40V (60Vct or 80Vct) at 1200VA
-This bad boy weighs about 35lbs.

54V-0-54V (108Vct) at 1500VA
-Also about 35lbs.

It looks like they can be wired for 110V or 220V. I'm not sure I've calculated the VA numbers right - each half of the secondary is rated at half the VA, so I doubled it for both halves. Don't know if that is how it is done.

I used one of these for a big, 6 channel amp. It is a pain to move around now! I think the 30-0-30 unit could maybe be used for a massive GainClone PSU. It is just slightly too high in voltage, but would probably work fine. I might keep it for that, we'll see...

Anyway, I'm going to ask $15 a piece. I'd really like to see them used. I'm located on the westside of Los Angeles. The two smaller ones fit inside a flat rate USPS package, but the two bigger ones, I don't know if they can reasonable be shipped. The best way to contact me is email: peglegpatrick AATTT gmailDOTTcom
Attached Images
File Type: jpg HugeTRX.jpg (44.2 KB, 413 views)
  Reply With Quote
Old 10th December 2010, 10:14 PM   #2
...truth seeker...
diyAudio Member
 
Ed LaFontaine's Avatar
 
Join Date: Feb 2004
Location: where the Appalachians rise from the Blue Grass
cuibono,

ygm
  Reply With Quote
Old 11th December 2010, 08:56 PM   #3
Plundering the Planet From the Comfort of Home
diyAudio Member
 
DreadPirate's Avatar
 
Join Date: Jan 2006
Location: Northern Virginia, USA
I may want the 40-30-0-30-40 if its still available. Perhaps a 45. ygm.

Last edited by DreadPirate; 11th December 2010 at 09:18 PM.
  Reply With Quote
Old 12th December 2010, 02:01 PM   #4
...truth seeker...
diyAudio Member
 
Ed LaFontaine's Avatar
 
Join Date: Feb 2004
Location: where the Appalachians rise from the Blue Grass
Payment sent...much obliged..
  Reply With Quote
Old 13th December 2010, 04:59 PM   #5
cuibono is offline cuibono  United States
diyAudio Member
 
cuibono's Avatar
 
Join Date: May 2006
Location: City of Angles
Looks like they are all sold - thanks all.
  Reply With Quote
Old 17th December 2010, 09:50 PM   #6
...truth seeker...
diyAudio Member
 
Ed LaFontaine's Avatar
 
Join Date: Feb 2004
Location: where the Appalachians rise from the Blue Grass
cuibono,

"Monster" doesn't do it justice...IT'S GINORMOUS!

The torroid arrived. Goodness gracious, the ladies at the post office were speculating "what is in here?" Someone told them it was my paycheck...

Your generosity has been repeated: I just sent a torroid to one of the budding enthusiasts on this forum, N/C.

Thanks for all...
  Reply With Quote
Old 17th December 2010, 09:54 PM   #7
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
what's fuss ?

I used bigger than these for my MC prepre



__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
  Reply With Quote
Old 18th December 2010, 08:48 PM   #8
cuibono is offline cuibono  United States
diyAudio Member
 
cuibono's Avatar
 
Join Date: May 2006
Location: City of Angles
Quote:
Originally Posted by Ed LaFontaine View Post
...IT'S GINORMOUS!...
Ha, thats cool. The guy at the post office asked if it was lead when I dropped it off. Poor guys, it was the busiest day of the year for them too.

I tried to give them away on craigslist, but I stipulated that the recipient had to give me an idea what they were going to do with them - lots of people wrote, but no one had even the remotest idea what to do with them.

Then I took one to a scrap yard, and they said they'd give me $4 for each one. That seemed like a waste, and I'm glad they got into good hands! I didn't think they would.

ZM...
  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
Best source for toroid power transformers in Europe? Danish Parts 2 31st January 2009 07:17 AM
Toroid power transformers - are they a good idea? ray_moth Tubes / Valves 14 16th December 2008 02:10 PM
How about a round-up of Class A kit power amps, or collectable vintage class A? Brisso57 Solid State 4 14th February 2007 11:30 AM
Properly sizing transformers for Class D amps RHosch Class D 46 22nd February 2005 01:15 PM


New To Site? Need Help?

All times are GMT. The time now is 09:33 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