Quiet transformer? Quiet transformer? - diyAudio
Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Chip Amps Amplifiers based on integrated circuits

Quiet transformer?
Quiet transformer?
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
Thread Tools Search this Thread
Old 26th October 2007, 05:25 AM   #1
lanchile07 is offline lanchile07  United States
diyAudio Member
lanchile07's Avatar
Join Date: Oct 2007
Talking Quiet transformer?

Hi when I put my head very close to the chassis, I can hear the transformer working it is a Gainclone LM3875.the transformer is Plitron #200734 300va 22 x 2 120ac.and the rectifier is a single board,(8 diodes total four for each channel)is this normal?
should I get a better transformer (Quieter)?.
this is the only thing that I am worried about.I do not hear nothing from speaker(noise) it is jut from transformer.
thank you.
  Reply With Quote
Old 26th October 2007, 06:27 AM   #2
peranders is offline peranders  Sweden
Electrons are yellow and more is better!
diyAudio Member
peranders's Avatar
Join Date: Apr 2002
Location: Göteborg, Sweden
Quiet transformer?
A transformer does hum, some more, some less. If it's not annoying I can't see the problem.
/Per-Anders (my first name) or P-A as my friends call me
PA03 LM4780 amplifier group buy, SIGN UP HERE for the group buy 0 boards left. 118 paid.
  Reply With Quote
Old 26th October 2007, 12:47 PM   #3
Sherman is offline Sherman  United States
diyAudio Member
Join Date: Feb 2004
Location: Chicago area
If it bothers you, you can try mounting the transformer on a foam pad and put another one on top between the trafo and the metal disk that clamps it down. That may help.
  Reply With Quote
Old 27th October 2007, 05:15 AM   #4
lanchile07 is offline lanchile07  United States
diyAudio Member
lanchile07's Avatar
Join Date: Oct 2007
Thank you guys for suggestions.and as you said "peranders" it is not so bad at all.the noise is when I put my ears on top of transformer.so I will leave it like it is.and beside the two channels are noise free.I do not hear any noise except clear music.thank you guys.
  Reply With Quote


Quiet transformer?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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
How quiet is dead quiet? pchw Tubes / Valves 36 22nd November 2007 04:36 AM
My first ESL: works but VERY quiet bigwill Planars & Exotics 69 6th July 2007 07:52 AM
Quiet here, isn't it? pinkmouse The Lounge 24 8th February 2005 08:29 PM
How quiet will it be? MMicke Chip Amps 8 12th July 2003 08:26 PM
Too quiet! grataku Everything Else 14 14th February 2003 04:39 PM

New To Site? Need Help?

All times are GMT. The time now is 08:44 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio