p2p opa549 gainclone - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 1st January 2005, 04:52 AM   #1
diyAudio Member
Join Date: Jun 2004
Location: ARKANSAS
Default p2p opa549 gainclone

finally got around to this gainclone thingy........and honestly i can say they are worth all the hype. to easy not to build one for fun.

i made a simple p2p opa549 based amp, on strip board.
2 xicon 1000uf caps (from PE)
1 22k carbon resistor from rat shack pin 1-3
1 47k metal film rat shack pin 4 to gnd
1 1k metal film rat shack pin 3 gnd
5 TI samples (opa549)
2 18v makita ni-cad drill batts *puts out 20volts at chip
(i have 4 extra from burning out drills at work)

i have no bypass caps on the batts, or the 1000uf at chips.
no zobel, buffer, etc. and also held together and hooked up with a rats nest of alligator clips, lol.....i ran these all day while working and my co-workers just couldnt get that the amps sounded so good and i built them out of cheapo parts.

the speakers i pieced together didnt help any, but the gainclone still made them sound good. i really didnt hear any bad sounds, hums, buzz, etc

i am going to make a website up and post the pics, but im moving all weekend and my girl is giving birth in 2 weeks, so if i find time to do anything ill be lucky!

also the case work is nice, and just as minimal as the amps parts. total for the project is well under $20.00
  Reply With Quote
Old 1st January 2005, 06:17 AM   #2
qwad is offline qwad  Australia
diyAudio Member
Join Date: Mar 2003
Location: adelaide city of churches
congrats allow me to be the first to congratulate you on the success of your gainclone and the impending birth of your 1st born. and btw I dont evy you moving house having just don the same myself oh what a nightmare luckily I have a fit and strong 18 yr old son and his chums who chipped in and helped with the move... whilst I am still planning to do my first chip amp amongst other projects[ ie: some speakers and a jlh class a amp or a hiraga 20 watter, if I can make up my mind which of those 2 to do] once the dust has finally settled and a happy new year to you and your dear other half cheers tomcat
we all have problems only some people have more than most....
long live the Magyar (Hungarians) in the world!
  Reply With Quote
Old 11th January 2005, 08:20 PM   #3
diyAudio Member
Join Date: Oct 2004

Can you post the schematics for your amp?
  Reply With Quote
Old 13th January 2005, 08:43 PM   #4
diyAudio Member
demogorgon's Avatar
Join Date: Jul 2004
Location: Behind you.
Send a message via MSN to demogorgon
looks like he pretty mush used the suggested design from the front of the datasheets.. just download it. just google for opa549.
  Reply With Quote


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
OPA549 Gainclone Layout n00beR Chip Amps 89 11th January 2008 07:21 AM
Birth of another gainclone around OPA549 rehanabid Chip Amps 22 10th May 2007 01:59 AM
opa548/opa549 gainclone amp kozak Chip Amps 4 8th September 2004 02:12 AM
OPA549 amp Freddie Chip Amps 8 29th February 2004 08:51 AM
Need help with opa549 e/s pin punchpeanut Chip Amps 7 8th August 2003 10:52 PM

New To Site? Need Help?

All times are GMT. The time now is 05:52 PM.

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

Content Relevant URLs by vBSEO 3.3.2