Destroyer x Amplifier...Dx amp...my amplifier - Page 697 - 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 2nd December 2011, 03:39 PM   #6961
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default hehehehhe i am confused

What transistor you replace?....where? ....Q3 position?....have not worked?....wrong assemble for sure...check transistor polarity and leads

Carlos
__________________
Power supply; ripple, filter, noise, stability and the use of capacitance multiplier... Portuguese and English; https://www.youtube.com/watch?v=sSm0ku1eIgg

Last edited by destroyer X; 2nd December 2011 at 03:42 PM.
  Reply With Quote
Old 3rd December 2011, 03:11 AM   #6962
diyAudio Member
 
Join Date: Sep 2010
Location: Đ Nẵng ,Viet Nam
Quote:
Originally Posted by destroyer X View Post
What transistor you replace?....where? ....Q3 position?....have not worked?....wrong assemble for sure...check transistor polarity and leads

Carlos
yes, Q3 and Q8, i checked polarity before fix on the PCB
  Reply With Quote
Old 3rd December 2011, 09:26 AM   #6963
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default Very strange result you had.... your replacement should work

Your voltages are not fine.

Show me board pictures, not only to help you watching, but also to check if you made board by yourself.

We have pirates in the internet offering boards, i want to check if you are diy..then you will continue to deserve all attention from the diy audio forum.

regards,

Carlos
__________________
Power supply; ripple, filter, noise, stability and the use of capacitance multiplier... Portuguese and English; https://www.youtube.com/watch?v=sSm0ku1eIgg
  Reply With Quote
Old 3rd December 2011, 12:48 PM   #6964
diyAudio Member
 
Join Date: Sep 2010
Location: Đ Nẵng ,Viet Nam
Quote:
Originally Posted by destroyer X View Post
Your voltages are not fine.

Show me board pictures, not only to help you watching, but also to check if you made board by yourself.

We have pirates in the internet offering boards, i want to check if you are diy..then you will continue to deserve all attention from the diy audio forum.

regards,

Carlos
Thanks a lot, i think as u think ,but i checked more 3 time but not found the mistake.
Here is my layout Click the image to open in full size.
  Reply With Quote
Old 3rd December 2011, 01:13 PM   #6965
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default This is normal my dear friend...we check several times and

we watch and we cannot see.... for sure there is a problem as your amplifier is presenting wrong voltages...try to substitute these H1061 by others... TIP41 or TIP31C or other transistor... search for any NPN you have around.

Continue searching... this amplifier works and works very well...it is not an untested machine..hundreds have assembled...the error is there.... hidden from your eyes but you will find it sooner or latter.

Humans are this way.... we fail all time long...i use to do the same... 50% or my amplifier does not operate first time..i am always searching for my own mistakes..you are not the first one and will not be the last one.

There is only one kind of man that does not make mistakes...the one does nothing...doing nothing then no mistakes.... and this specimen, abnormal humans, alike parasites, goes only watching other guy's mistakes and criticising.... very confortable...they do nothing.

regards,

Carlos
__________________
Power supply; ripple, filter, noise, stability and the use of capacitance multiplier... Portuguese and English; https://www.youtube.com/watch?v=sSm0ku1eIgg
  Reply With Quote
Old 3rd December 2011, 01:18 PM   #6966
diyAudio Member
 
Join Date: Sep 2010
Location: Đ Nẵng ,Viet Nam
Quote:
Originally Posted by destroyer X View Post
we watch and we cannot see.... for sure there is a problem as your amplifier is presenting wrong voltages...try to substitute these H1061 by others... TIP41 or TIP31C or other transistor... search for any NPN you have around.

Continue searching... this amplifier works and works very well...it is not an untested machine..hundreds have assembled...the error is there.... hidden from your eyes but you will find it sooner or latter.

Humans are this way.... we fail all time long...i use to do the same... 50% or my amplifier does not operate first time..i am always searching for my own mistakes..you are not the first one and will not be the last one.

There is only one kind of man that does not make mistakes...the one does nothing...doing nothing then no mistakes.... and this specimen, abnormal humans, alike parasites, goes only watching other guy's mistakes and criticising.... very confortable...they do nothing.

regards,

Carlos
I see,I will try to find out as soon as I can. Thanks for your support and encouragement
  Reply With Quote
Old 3rd December 2011, 01:23 PM   #6967
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default I could not see your country...please, let uncle charlie know these details

Go to your profile and tell us something about you.

regards,

Carlos
__________________
Power supply; ripple, filter, noise, stability and the use of capacitance multiplier... Portuguese and English; https://www.youtube.com/watch?v=sSm0ku1eIgg
  Reply With Quote
Old 3rd December 2011, 11:59 PM   #6968
diyAudio Member
 
Join Date: Sep 2010
Location: Đ Nẵng ,Viet Nam
ok sir
  Reply With Quote
Old 7th December 2011, 08:07 AM   #6969
diyAudio Member
 
Join Date: Sep 2010
Location: Đ Nẵng ,Viet Nam
I have replace Bd139 by Tip 41 .It worked with speaker , but the 5200 and 1943 tranzito was so hot after some minute (15 min ) and broken .I placed them on a small heatsink, that 's the reason ?
I also replaced C12 ( 47u/70V), and C10 (220u,63V ) by 100u/100V. What 's the difference if I do that.
  Reply With Quote
Old 7th December 2011, 08:16 AM   #6970
PMA is offline PMA  Europe
diyAudio Member
 
PMA's Avatar
 
Join Date: Apr 2002
Location: Prague
Do you have an oscilloscope?
__________________
Pavel Macura
http://web.telecom.cz/macura/audiopage.html
  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 10:42 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