similar to SKA - diyAudio
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 7th June 2007, 05:13 AM   #1
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
Default similar to SKA

I thought this use of a bootstrap cap around the Vas to the diff inputs looked a lot like the SKA (from SAE, 1974).

http://tinyurl.com/3a72hb

http://f1.grp.yahoofs.com/v1/0JBnRvp...D/SAEIVDM1.jpg
__________________
Candidates for the Darwin Award should not read this author.
  Reply With Quote
Old 7th June 2007, 06:06 AM   #2
lineup is offline lineup  Sweden
diyAudio Member
 
lineup's Avatar
 
Join Date: Dec 2005
Location: the north
It is a bit many components
Which caps do you refer to, djk?

I take a guess it is C13, 100uF.
They are bootstrapping.
Is that right?

If you mean C9, C10, they are local compensation caps.
22pF and 47pF.
There was a Topic about this, some month ago.
This is a good alternative to use such comp caps.
Alternative to global compensation cap, in feedback line.

Are you up to try some new design of a power amplifier?
What was your latest build?

Regards, lineup
__________________
lineup
  Reply With Quote
Old 7th June 2007, 07:42 AM   #3
diyAudio Moderator Emeritus
 
lumanauw's Avatar
 
Join Date: Oct 2002
Location: Bandung
Send a message via Yahoo to lumanauw
What's the schematic looks like? I cannot connect to the URL.
  Reply With Quote
Old 7th June 2007, 10:38 AM   #4
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
imageClick the image to open in full size.
__________________
Candidates for the Darwin Award should not read this author.
  Reply With Quote
Old 7th June 2007, 11:00 AM   #5
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
"It is a bit many components
Which caps do you refer to, djk?

I take a guess it is C13, 100uF.
They are bootstrapping.
Is that right?"

Yes, C13 and C14 were the ones I was thinking of. The cascode front-end of the SAE is probably more like Greg's 300 watt model.
__________________
Candidates for the Darwin Award should not read this author.
  Reply With Quote
Old 7th June 2007, 02:36 PM   #6
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default DJK, can you please upload to me the entire schematic you have published.


Also i will have the interest to know the model number and the factory name...yeah..already informed into the transistors.

If you prefer.... and will be better to me because bigger resolution, upload ot my mail box please.

panzertoo@yahoo.com

I want to simulate and to construct this one...i have some plans to compare simple and complex designs with the same supply.

this one is complex enougth.

There are informs missing into the rigth side of your schematic published

regards,

Carlos
__________________
DxS, the best from the best...the cream from the cream, the best wide world ever made audio amplifier.
  Reply With Quote
Old 7th June 2007, 03:28 PM   #7
diyAudio Moderator Emeritus
 
lumanauw's Avatar
 
Join Date: Oct 2002
Location: Bandung
Send a message via Yahoo to lumanauw
Strange. Now I cannot see what DJK attached in post #4.
  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
C37 similar material tube-lover Multi-Way 27 22nd July 2013 06:14 PM
re-using Sillpads and similar AndrewT Parts 0 22nd January 2007 02:20 PM
Accuton C2-12, C2-13 or similar Jussi Multi-Way 6 4th January 2007 07:53 PM
looking for similar FET Ahmad_tbp Solid State 5 6th May 2006 09:26 PM


New To Site? Need Help?

All times are GMT. The time now is 09:17 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