2 x 115-2x500 to 2 x 240-2 x 1000? - diyAudio
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 3rd September 2012, 10:06 PM   #1
diyAudio Member
 
Join Date: Oct 2010
Location: se england
Default 2 x 115-2x500 to 2 x 240-2 x 1000?

Hi all.

I have an antek 400w 2 x 500v toridal transformer with twin 115v primarys that i'm using in a choke input supplied hybrid valve (6d22s -2 per phase) rectified sterio GM70 SE power amplifier, 125-145ma/channel. Designed Ht is ~850-900v.
as i have a few 10H 350ma chokes i was planing on LCLC supply feeding both channels, possably via a simple regulator.

looking at the chassis i see 4 6d22s, 2 chokes and a transformer with duel secondarys. This got me thinking if it was possible to safely feed the primarys in parallel rather than series to get 2 x 1000v and have an LC power supply per channel?

Any advice gratefully recieved!

Enzo
  Reply With Quote
Old 4th September 2012, 11:05 AM   #2
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
No. You will almost certainly get significant core saturation and serious overheating. Most mains transformers cannot be used at more than about 10% overvoltage; some can barely cope with their rated voltage when off-load.
  Reply With Quote
Old 4th September 2012, 08:08 PM   #3
diyAudio Member
 
Join Date: Oct 2010
Location: se england
Ah, thanks for that!

perhaps in the future i'll invest in a second 1000v transformer.

enzo
  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
beyma MC-115 Sony Multi-Way 6 12th April 2013 03:08 AM
115 V transformer on 230 V ??? jim Tubes / Valves 19 9th July 2005 12:04 PM
irf 240 or irfp 240 for the aleph scu Pass Labs 2 14th January 2002 07:49 PM
Tripath amp 2x500 w? partyjups Digital Source 5 13th November 2001 11:35 AM


New To Site? Need Help?

All times are GMT. The time now is 11:07 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