Moving up the chipamp ladder - 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 26th September 2013, 04:10 AM   #1
vodka is offline vodka  Argentina
diyAudio Member
 
Join Date: Dec 2012
Location: Buenos Aires
Default Moving up the chipamp ladder

Well, earlier this month I built myself a stereo LM3886 amp, using apex's PCB, rod eliott's P97 preamp schematic to make my own PCB, PSU and regulated PSU for the preamp, all in one 20x10cm pcb, along with a 240va 24+24v transformer. It's really amazing what the 3886 can do... it sounds really good. Much better than a 30 year old old kenwood KA-300B I fixed and recapped, by a mile. Or more..

I was thinking of making a revision of that all integrated pcb and thought, why not improve the amps. I've read a few things and lots of praising about the myrefc, which seems feasible in a single layer PCB and I also came across bob cordell's super gain clone. I checked the circuit mentioned in that book and seems simpler to build than the myref. I love the DIY way and buying boards is not an option, I want to craft everything with my hands. It's much more rewarding, I suppose.


To you, chipamp gurus, I ask. Which of these two is the most worthy of building? I don't have super speakers, but they get the job done after some little tweaks... who knows, I may get something better in the future and improving the amplification behind them can't hurt.


Thank you in advance.

Last edited by vodka; 26th September 2013 at 04:26 AM.
  Reply With Quote
Old 26th September 2013, 12:29 PM   #2
gootee is offline gootee  United States
diyAudio Member
 
Join Date: Nov 2006
Location: Indiana
Blog Entries: 1
Use two-sided pcbs, with ground plane. Two-sided are easy to make at home.
__________________
The electrolytic capacitors ARE the signal path: http://www.fullnet.com/~tomg/zoom3a_33kuF.jpg
  Reply With Quote
Old 26th September 2013, 12:34 PM   #3
diyAudio Member
 
jackinnj's Avatar
 
Join Date: Apr 2002
Location: Llanddewi Brefi, NJ
Quote:
Originally Posted by vodka View Post
... and I also came across bob cordell's super gain clone. I checked the circuit mentioned in that book and seems simpler to build than the myref. I love the DIY way and buying boards is not an option, I want to craft everything with my hands. It's much more rewarding, I suppose.
Bob demo'd the Super GC at the NJ Audio Society a couple years back -- with a set of Thors another fellow had modified. It sounded very nice indeed.
  Reply With Quote
Old 26th September 2013, 02:04 PM   #4
troystg is offline troystg  United States
diyAudio Member
 
troystg's Avatar
 
Join Date: Apr 2004
Location: In a dream... Please don't wake me.
The My_Ref is not a standard GC.. However for an amp based on the LM3886 I don't think it can be beat.

If you are enjoying the DIY aspect then build simple to elaborate and give away the old to hook others on DIY as you make bigger and better.
__________________
Troy
Thinking positive doesn't make things better, it makes you a better person.
  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
Ladder crossover Dzius Multi-Way 1 19th October 2012 08:17 PM
HELP with DIY ladder attenuator !!!!! mcgreg66 Parts 1 4th July 2011 11:45 AM
What is ladder braces?? murat Multi-Way 12 2nd November 2007 09:03 PM
How should I set up my ladder attenuators? Spasticteapot Parts 2 5th November 2006 03:04 PM
Ladder relay attenuator or so? Eccu Solid State 0 6th October 2003 11:00 AM


New To Site? Need Help?

All times are GMT. The time now is 03:29 AM.


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