QUASI Amplifier for Beginners - Page 66 - 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 17th June 2012, 04:26 AM   #651
t68kv is offline t68kv  Philippines
diyAudio Member
 
Join Date: Dec 2007
Components are already specified in the top view and schematics posted at page 1.

QUASI Amplifier for Beginners

As for capacitors, use 50V for input stages and 250V or above for VAS, driver and output stage (100nf and 470pf).

Last edited by t68kv; 17th June 2012 at 04:28 AM.
  Reply With Quote
Old 17th June 2012, 04:50 AM   #652
yehan is offline yehan  Philippines
diyAudio Member
 
Join Date: Feb 2009
Thanks. My concern about the capacitor where the ceramic or mylar? And only 65+- volts dc maximum? When i put 80+- it is ok and add more output transistor?
  Reply With Quote
Old 17th June 2012, 05:07 AM   #653
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
"When i put 80+- it is ok and add more output transistor? "

Only if you can hand-select the outputs to be sure of a higher voltage than what the part is rated for. For instance, Crown hand-selects all the 160 outputs used in the MA10K to run at 163V (rail-to-rail), plus a safety margin for high line-voltage.
__________________
Candidates for the Darwin Award should not read this author.
  Reply With Quote
Old 17th June 2012, 09:23 AM   #654
yehan is offline yehan  Philippines
diyAudio Member
 
Join Date: Feb 2009
Thanks djk..
  Reply With Quote
Old 17th June 2012, 11:46 AM   #655
yehan is offline yehan  Philippines
diyAudio Member
 
Join Date: Feb 2009
Helllp...which mylar capacitor or ceramic capacitor..thanks..
  Reply With Quote
Old 17th June 2012, 11:51 AM   #656
diyAudio Member
 
Join Date: Aug 2009
Default mylar and ceramic....

Quote:
Originally Posted by yehan View Post
Helllp...which mylar capacitor or ceramic capacitor..thanks..
capacitor that have values expressed in uf are mylar and pf is for ceramic.

regards,
drowranger
  Reply With Quote
Old 17th June 2012, 11:57 AM   #657
yehan is offline yehan  Philippines
diyAudio Member
 
Join Date: Feb 2009
Can used darlinton instead of 2sa1943 and 2sc5200? To prevent the heat sink long? Thanks
  Reply With Quote
Old 17th June 2012, 12:12 PM   #658
diyAudio Member
 
Join Date: Aug 2009
Default stick on the circuit...

Quote:
Originally Posted by yehan View Post
Can used darlinton instead of 2sa1943 and 2sc5200? To prevent the heat sink long? Thanks
darlington and paralleled ouput are not the same configuration.

regards,
drowranger
  Reply With Quote
Old 17th June 2012, 12:22 PM   #659
yehan is offline yehan  Philippines
diyAudio Member
 
Join Date: Feb 2009
Ok....thanks...
Drowrenger..do you make this amp? How much supply for maximum +- dc.
And the watts how much? This circuit produce 500 watts rms?
  Reply With Quote
Old 17th June 2012, 12:28 PM   #660
diyAudio Member
 
Join Date: Aug 2009
Default not yet....

Quote:
Originally Posted by yehan View Post
Ok....thanks...
Drowrenger..do you make this amp? How much supply for maximum +- dc.
And the watts how much? This circuit produce 500 watts rms?
better wait for apex reply about the supply and how much wattage it can produce..

regards,
joel
  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
MOSFET/BJT QUASI AMPLIFIER WITH PROTECT!!! apexaudio Solid State 40 21st November 2012 01:37 PM
A.Holton AV400 using irfp or Quasi mosfet amplifier ? medogrizli Solid State 49 5th November 2011 11:04 PM
How to identify a quasi-complementary amplifier? motbuddy Solid State 8 24th April 2011 11:59 AM
question about quasi nmos500 amplifier schematic? muky006 Pass Labs 3 8th May 2008 09:07 AM
Quasi N30 ClassA amplifier AndrewT Solid State 8 9th January 2008 07:57 PM


New To Site? Need Help?

All times are GMT. The time now is 05:15 PM.


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