Go Back   Home > Forums > Amplifiers > Solid State

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
Reply
 
Thread Tools Search this Thread
Old 8th December 2009, 01:47 AM   #1
ljm_ljm is offline ljm_ljm  China
diyAudio Member
 
Join Date: Sep 2006
Smile L-20 200w class b amp

this is my design amp.
it is 200W OUTPUT。
voltage + -70V
Attached Images
File Type: jpg T22qJXXaRcXXXXXXXX_!!36508936.jpg (74.8 KB, 560 views)
  Reply With Quote
Old 10th December 2009, 10:41 AM   #2
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
Your effort looks very nice.

How hard are you going to use it?

Adcom had good success with their 60W rated 535 and 100W rated 545. They used the same circuit board for both models, just more heatsink and more outputs. The 535 had a 3.5" tall heatsink and two pair of plastic outputs. The 545 had a 5.25" tall heatsink and three pair of plastic outputs.

The 200W rated 555 went to four pair of metal cased outputs with 7" tall heatsinks.
__________________
Candidates for the Darwin Award should not read this author.
  Reply With Quote
Old 10th December 2009, 01:07 PM   #3
ljm_ljm is offline ljm_ljm  China
diyAudio Member
 
Join Date: Sep 2006
yes 。
i will use it .
this is a CLASS b amp.itis efficiency is 65%.
  Reply With Quote
Old 10th December 2009, 02:17 PM   #4
diyAudio Member
 
Join Date: Dec 2009
Location: chengdu china
Send a message via ICQ to yangbaibing
You should provide more infomation about the L20.Such as 18V/us and so on.
  Reply With Quote
Old 3rd October 2011, 02:21 PM   #5
ljm_ljm is offline ljm_ljm  China
diyAudio Member
 
Join Date: Sep 2006
Please note that only L20 blue is correct. The original provider.

It will indicate the DESIG LJM.
  Reply With Quote
Old 3rd October 2011, 03:04 PM   #6
Homl is offline Homl  Canada
diyAudio Member
 
Join Date: Nov 2003
Interesting amp.
Can you please post a schematic of the latest version of the L20? Thanks.
  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
200W in 8 Ohms Class D amp wanted Session Class D 5 8th October 2009 07:08 PM
SE Class A 200W PURE Heat lineup Solid State 28 25th November 2008 07:08 PM
DIY 200w amp blondfire Solid State 7 1st March 2007 10:35 AM
200w Gem serosmaness Solid State 0 30th July 2006 02:39 AM
My 200W/4 class AB MOSFET amp. sparkybg Solid State 20 21st July 2005 07:39 AM


New To Site? Need Help?

All times are GMT. The time now is 05:27 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