plz help!!!!!!!!!!!!!!!!! - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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 11th September 2005, 08:56 PM   #1
keepout is offline keepout  Belarus
diyAudio Member
 
Join Date: Jan 2005
Location: Minsk
Default plz help!!!!!!!!!!!!!!!!!

I want to build this ative filter for sub

i have pcb but have not component side.
Attached Images
File Type: gif pcb.gif (14.2 KB, 408 views)
  Reply With Quote
Old 12th September 2005, 12:52 AM   #2
diyAudio Member
 
Join Date: Feb 2001
Location: Columbia, SC
I'm not clear what kind of help you're wanting. How is it that you have the PCB, but don't have the component side of the board?
If you're asking someone to provide a schematic and/or bill of materials for the circuit board artwork you've posted, it's extremely unlikely that you'll get a useful response. It's like showing someone a picture of a curve in the road and asking for directions to the nearest restaurant from that spot. Out of all the roads in the world, the odds are against anyone happening to recognize that particular curve. Even then, there are always going to be curves that look similar to the one in the picture, but are actually far, far away. In a case such as that, the answer you get might not be correct.

Grey
  Reply With Quote
Old 12th September 2005, 01:37 AM   #3
Banned
 
Join Date: Mar 2005
Location: Australia
you have wires and with them you only make connections

cheers
  Reply With Quote
Old 12th September 2005, 06:13 PM   #4
keepout is offline keepout  Belarus
diyAudio Member
 
Join Date: Jan 2005
Location: Minsk
Angry hhhh

sorry i forgot schematic diagram
Attached Images
File Type: jpg sch.jpg (74.6 KB, 343 views)
  Reply With Quote
Old 12th September 2005, 10:02 PM   #5
diyAudio Member
 
Join Date: Feb 2001
Location: Columbia, SC
Good...that helps...now, what's your question?

Grey
  Reply With Quote
Old 12th September 2005, 11:10 PM   #6
moamps is offline moamps  Croatia
diyAudio Member
 
Join Date: Oct 2002
Location: Croatia
crosswords?
Attached Images
File Type: jpg crosswords.jpg (36.0 KB, 268 views)
  Reply With Quote
Old 14th September 2005, 01:13 PM   #7
keepout is offline keepout  Belarus
diyAudio Member
 
Join Date: Jan 2005
Location: Minsk
thx moamps

sorry for my english i speak bad


i have few questions


1 are lm7912/7812 necessary?
2 i need something about capacitors "cx"
  Reply With Quote
Old 14th September 2005, 01:31 PM   #8
diyAudio Member
 
Alain Dupont's Avatar
 
Join Date: Sep 2003
Location: Paris - France
keepout,

1 are lm7912/7812 necessary?

** These are the +-12 volts regulators to give power to IC's ; mandatory!


2 i need something about capacitors "cx"

** Yes, about 10/100microF 25Volts ; take a look at the lm7912 datasheet.

http://www.national.com/pf/LM/LM7912.html

Regards.

Alain.
  Reply With Quote
Old 16th September 2005, 02:18 PM   #9
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
All four "cx" should also have a 0.1F film cap in parallel with them for lowest noise.
  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 06:48 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