where to find info on classG and classH - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Solid State Talk all about solid state amplification.

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 2nd July 2003, 05:30 AM   #1
diyAudio Member
Join Date: Dec 2001
Location: SIUE, Illinois, USA
Default where to find info on classG and classH

basically, as the title says. i have no real reasons to build one, but want to learn anyways. good books or wesites very helpful.
if only it could be used for good, not evil...
  Reply With Quote
Old 3rd July 2003, 07:49 AM   #2
djdan is offline djdan  Romania
diyAudio Member
Join Date: Dec 2001
Location: Romania
Class H is a best way to make amplifiers DiY or Pro becouse have small termal disipation and is not to complicated.
Unfortunately for DiY I do not saw a simple amplifier schematic .
Only schematic wich I know I found in TDA7294 data sheet but is a little bit complex.

Maybe some other member of this forum will help us .
  Reply With Quote
Old 3rd July 2003, 09:15 AM   #3
sonnya is online now sonnya  Denmark
diyAudio Member
sonnya's Avatar
Join Date: Oct 2001
Location: Denmark
Douglass Self's book on audio :


I think it have most of what you needs. Also on class G.

  Reply With Quote
Old 3rd July 2003, 09:57 AM   #4
diyAudio Member
Join Date: May 2002
Location: Switzerland
There was also a series of articles in Electronics World by D. Self, where he showed a worked-out example.

Another source for a class G amp is the following patent by Bob Carver (also including his strange PSU topology):


And the following one with his tracking power converter (even the prior art is interesting):



  Reply With Quote
Old 4th July 2003, 05:18 AM   #5
diyAudio Member
Join Date: Dec 2001
Location: SIUE, Illinois, USA
very tempting on the book. i guess i just need more cash. i wonder if there is any kinda student discount or system like that at my school.
if only it could be used for good, not evil...
  Reply With Quote
Old 28th December 2012, 10:00 AM   #6
diyAudio Member
tiefbassuebertr's Avatar
Join Date: Jul 2005
Location: D-55629 Schwarzerden
While the attempt for starting a thread with same topic, I discover, that already here is present those topic.

Are there any news in the meantime ?

Where are the best threads here on diyaudio concerning Class-G and class-H ?

Thank you for advices.

In the attachment an example for class-H; the whole circuit you will find here:
BRAUN R4 SCH Service Manual free download, schematics, eeprom, repair info for electronics
Attached Files
File Type: pdf Braun R4 Power Amp Schematic.pdf (153.0 KB, 56 views)

Last edited by tiefbassuebertr; 28th December 2012 at 10:11 AM.
  Reply With Quote
Old 28th December 2012, 05:18 PM   #7
diyAudio Member
StevenOH's Avatar
Join Date: Jun 2004
The truth is out there. Who can handle the truth?
  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
Need info on my Onkyo, can't find any info anywhere. gixxierific Digital Source 0 19th April 2009 03:49 PM
Where can I find info on old amp ICs? DonoMan Solid State 9 22nd March 2009 02:38 AM
Help me find some info please JPeitzman Tubes / Valves 3 29th November 2007 03:52 AM
Minimus -2. Can't find any info Scioneer Multi-Way 2 23rd September 2006 02:24 AM

New To Site? Need Help?

All times are GMT. The time now is 07:51 AM.

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