Krell KSA 50 pcb - Page 3 - 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 October 2004, 08:25 AM   #21
diyAudio Member
 
Join Date: Aug 2003
Location: Prague,Czech Republic
Jan, this biasing circuit is nonsens !
  Reply With Quote
Old 17th October 2004, 08:34 AM   #22
diyAudio Member
 
Jan Dupont's Avatar
 
Join Date: Apr 2003
Location: Copenhagen, Denmark
Send a message via MSN to Jan Dupont
Wink Goodmorning Pavel

Please tell
To me it seems quite normal, if you make a connection between C of TR8 to B of TR10, and again from C of TR7 to B of TR11.....
Or did I miss omething ????
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com
  Reply With Quote
Old 17th October 2004, 08:40 AM   #23
diyAudio Member
 
Jan Dupont's Avatar
 
Join Date: Apr 2003
Location: Copenhagen, Denmark
Send a message via MSN to Jan Dupont
Pic of a "normal" biasing circuit...
Sorry but it has to wait, as it seems as the pics I got here at my labtop doesn´t show well when published here...
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com
  Reply With Quote
Old 17th October 2004, 09:12 AM   #24
diyAudio Member
 
Join Date: Aug 2003
Location: Prague,Czech Republic
To Jan : That will be correct .
  Reply With Quote
Old 17th October 2004, 09:14 AM   #25
diyAudio Member
 
Jan Dupont's Avatar
 
Join Date: Apr 2003
Location: Copenhagen, Denmark
Send a message via MSN to Jan Dupont
Thanks Pavel
For a moment I thougt that I was gone crazy
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com
  Reply With Quote
Old 17th October 2004, 09:20 AM   #26
diyAudio Member
 
Join Date: Aug 2003
Location: Prague,Czech Republic
To Jan : P.S. : If you will make a PCB, give capacitors on position CB of drivers and serial resistors to the basis of output devices - amp will be more stable .
  Reply With Quote
Old 17th October 2004, 09:27 AM   #27
diyAudio Member
 
Join Date: Aug 2003
Location: Prague,Czech Republic
P.P.S.: Try to think to give there a protector for overcurrent ( same as you have in your amp ) - amp without this circuit is crime .
  Reply With Quote
Old 17th October 2004, 11:41 AM   #28
diyAudio Member
 
Jan Dupont's Avatar
 
Join Date: Apr 2003
Location: Copenhagen, Denmark
Send a message via MSN to Jan Dupont
Default Pavel

Thanks for your suggestions
I will sure put in the output protection circuit, base resistors and CB caps on the drivers
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com
  Reply With Quote
Old 17th October 2004, 10:35 PM   #29
diyAudio Member
 
Join Date: Dec 2002
Location: Poland
Could someone tell me what for a resistors R1 in the PSU is?
__________________
Jarek
  Reply With Quote
Old 18th October 2004, 12:07 AM   #30
PMik is offline PMik  United States
diyAudio Member
 
PMik's Avatar
 
Join Date: Mar 2004
Location: Fort Lauderdale, FL
It was a "smart trick"
it hides the basic sound quality of the incredeble poor schematics......its called "floating ground"

Musical Fidelity used "floating ground" as well for there P270 and A370



Removed my comments on Krell engineering or lack of same

Should not spoile your fun
__________________
Mod is fun
  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



New To Site? Need Help?

All times are GMT. The time now is 05:08 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