LM1875 design advise.... - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 29th September 2006, 01:23 PM   #1
diyAudio Member
 
Join Date: Jan 2005
Location: North, England
Default LM1875 design advise....

I've built an LM3875 gainclone and now want to try a high quality 1875 based one.

Any suggestions for circuits etc?

Thanks.
  Reply With Quote
Old 29th September 2006, 01:42 PM   #2
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Great City of Turnhout, Belgium
Blog Entries: 7
Default Re: LM1875 design advise....

Quote:
Originally posted by setting son
I've built an LM3875 gainclone and now want to try a high quality 1875 based one.

Any suggestions for circuits etc?

Thanks.

... data sheet..?

Jan Didden
__________________
I won't make the tactical error to try to dislodge with rational arguments a conviction that is beyond reason - Daniel Dennett
Check out Linear Audio Vol 7!
  Reply With Quote
Old 29th September 2006, 03:24 PM   #3
diyAudio Member
 
Join Date: Jan 2005
Location: North, England
Thanks, Jan. I was thinking of other designs that circuit topologies that have proved to offer good sound quality.

Also, recommendations for the 2.2uf input cap, please?

Thanks.
  Reply With Quote
Old 30th September 2006, 01:35 AM   #4
Leolabs is offline Leolabs  Malaysia
diyAudio Member
 
Leolabs's Avatar
 
Join Date: Dec 2004
Location: Bukit Mertajam
Send a message via MSN to Leolabs
Quote:
Also, recommendations for the 2.2uf input cap, please?
No cap.
  Reply With Quote
Old 26th October 2006, 03:04 PM   #5
diyAudio Member
 
Join Date: Jan 2005
Location: North, England
Default Transformers

Another (dumb?) question for you:

Would one 50Watt 2x18v per channel transfromer be sufficient for a low power 1875 amp?

Thanks again,

Lee
  Reply With Quote
Old 26th October 2006, 03:06 PM   #6
Leolabs is offline Leolabs  Malaysia
diyAudio Member
 
Leolabs's Avatar
 
Join Date: Dec 2004
Location: Bukit Mertajam
Send a message via MSN to Leolabs
Default Re: Transformers

Quote:
Originally posted by setting son
Another (dumb?) question for you:

Would one 50Watt 2x18v per channel transfromer be sufficient for a low power 1875 amp?

Thanks again,

Lee
Why not??BTW,is 50VA not watts.
  Reply With Quote
Old 27th October 2006, 10:17 AM   #7
diyAudio Member
 
Join Date: May 2006
what is the difference between VA and W??
  Reply With Quote
Old 27th October 2006, 11:24 AM   #8
paulb is offline paulb  Canada
diyAudio Member
 
Join Date: Jun 2001
Location: Calgary
Default Re: LM1875 design advise....

Quote:
Originally posted by setting son
I've built an LM3875 gainclone and now want to try a high quality 1875 based one.

Any suggestions for circuits etc?

Thanks.
http://www.diyaudio.com/forums/showt...24#post1012124

Quote:
Originally posted by tinejenc
what is the difference between VA and W??
Generally (not precisely) speaking, W is used in this forum for amp output power, while VA is for transformer output rating. VA is used because the W you get from a power supply depends on several other factors besides VA.
  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
lm1875 psu design BionicSniper Chip Amps 28 15th March 2009 07:27 PM
Help! Speaker design advise needed beeroclock Full Range 0 30th March 2007 11:58 AM
LM1875 - pcb design zatramusic Chip Amps 2 15th February 2006 06:13 AM


New To Site? Need Help?

All times are GMT. The time now is 05:42 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