Dx Blame ST - Builder's thread - post pictures, reviews and comments here please. - Page 76 - 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 14th September 2010, 04:39 PM   #751
suicida is offline suicida  Greece
diyAudio Member
 
Join Date: Feb 2009
Location: Athens
Default Heatsink calculator???

Hello everybody. I would like to know how to calculate the heatsink for the DX Blame ST amplifier. Is it ok?

f.cool SK501

Thanks

Last edited by suicida; 14th September 2010 at 04:45 PM.
  Reply With Quote
Old 14th September 2010, 04:44 PM   #752
diyAudio Member
 
Join Date: Jan 2006
Location: Las Vegas
Thanks Sandbasser, you will be very happy with these amps. It is very musical.

Yes, Metal has answered the questions you asked. I used 18g THHN wire from Lowes/Home Depot for the inductor. It was like 20 cents a foot or less, it was labeled for telephone or alarm purposes.
  Reply With Quote
Old 14th September 2010, 07:11 PM   #753
suicida is offline suicida  Greece
diyAudio Member
 
Join Date: Feb 2009
Location: Athens
Default Loudspeaker protection circuit question

I am going to ask a silly question but I am a little bit confused regarding the loudspeaker protection board. I have already constructed the circuit that Carlos mentioned on post #251. Could someone explain to me what I have to connect AC, DC and SW1 connector.

Thank you for your help.
  Reply With Quote
Old 14th September 2010, 07:22 PM   #754
nikcho is offline nikcho  United States
diyAudio Member
 
Join Date: Feb 2010
Nice pics there, Rudi. Are you planning on comparing the Toshiba output transistors as well?

Nikolay
  Reply With Quote
Old 14th September 2010, 10:23 PM   #755
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default Suicida, soon we gonna have Rudi showing you his heatsink choice

About the speaker protector, the man is Mitchell...soon he will come to help you.

I am back home.

Last videos..... about the Dx post surgery final version, take a look fast, as Youtube may delete the song by Mark Knopfler because of rigths:

YouTube - Dx post surgery pictures, final version

YouTube - A lot of wind in Dx ex wife's place!

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 14th September 2010, 10:53 PM   #756
Mitchel is offline Mitchel  Brazil
diyAudio Member
 
Mitchel's Avatar
 
Join Date: Aug 2008
Quote:
I am going to ask a silly question but I am a little bit confused regarding the loudspeaker protection board. I have already constructed the circuit that Carlos mentioned on post #251. Could someone explain to me what I have to connect AC, DC and SW1 connector.
Hello suicida,

It's simple: you are gonna connect the secondaries of your transformer to the AC points on the circuit. Don't connect the center tap, only the two ACs from your transformer.

The DC point on the circuit is connected to the output from your power supply. That is, youre gonna connect the +V and GND from your power supply to the DC ponints on the circuit.

The SW is a thermal switch, and it's optional. If you decide to use one, you shuold use a Normally Open contacts unit (NO type). I think a 70ºC NO thermal switch is fine here. The thermal switch is bolted down to the main heatsink, and it will close contacts once the heatsink reaches the rated temperature of the switch. Once this happens, the circuit will disconnect the loudspeakers, and the heatsink will cool down, because the amp will be unloaded.

If you have any doubts, feel free to ask.
  Reply With Quote
Old 14th September 2010, 11:07 PM   #757
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default Thank you Mitchel (Miguel Nabuco)

Here is the voltage chart i have promissed to Wendel.

regards,

Carlos
Attached Images
File Type: jpg Mapa de tensões do Blame.jpg (489.7 KB, 317 views)
__________________
DxS, the best from the best...the cream from the cream, the best wide world ever made audio amplifier.
  Reply With Quote
Old 14th September 2010, 11:13 PM   #758
lineup is offline lineup  Sweden
diyAudio Member
 
lineup's Avatar
 
Join Date: Dec 2005
Location: the north
Where says -33.13V ... is not a correct one.
__________________
lineup
  Reply With Quote
Old 14th September 2010, 11:22 PM   #759
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default Thank you Carl...now i have fixed

attached,

regards,

Carlos
Attached Images
File Type: jpg Blame voltage.jpg (479.1 KB, 298 views)
__________________
DxS, the best from the best...the cream from the cream, the best wide world ever made audio amplifier.
  Reply With Quote
Old 14th September 2010, 11:40 PM   #760
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default Thank you Mitchel

abraços,

Carlos
__________________
DxS, the best from the best...the cream from the cream, the best wide world ever made audio amplifier.
  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
The Drek builder's thread cviller Pass Labs 412 25th September 2011 12:25 AM
Dx Blame ES .... based into the Blameless, i am trying a new amplifier destroyer X Solid State 1826 12th February 2011 07:11 AM
Dx amplifier, builder's thread destroyer X Solid State 25 31st May 2009 01:53 AM


New To Site? Need Help?

All times are GMT. The time now is 04:08 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