Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Group Buys Members group buys

F3 and F4 Clone PCB Reissue group buy, also F5 PCBs
F3 and F4 Clone PCB Reissue group buy, also F5 PCBs
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 29th January 2009, 04:22 AM   #551
Diomedian is offline Diomedian  Canada
diyAudio Member
 
Join Date: Nov 2004
Location: Halifax, N.S.
Quote:
Originally posted by samsagaz
About R13 and R14, wich of this two Res will be better?

http://search.digikey.com/scripts/Dk...e=P47.0CACT-ND

or

http://search.digikey.com/scripts/Dk...CMF47.5QFCT-ND

and what about yageo brand?

http://search.digikey.com/scripts/Dk...ame=47.5XBK-ND


Well, i cant find any 0.47R 3W res in Digikey or Mouser to work on R11 and R12 someone know wher ecan i get it

Thanks in advance.
Some claim there is very little difference between resistors, and others would claim there is a large difference. You'll find any of these three fine, though the only way to find out which one you prefer (if any) is to try them all.

Here is the typical .47R 3W resistor used in these parts.

http://search.digikey.com/scripts/Dk...=P0.47W-3BK-ND
  Reply With Quote
Old 29th January 2009, 04:25 AM   #552
samsagaz is offline samsagaz  Argentina
diyAudio Member
 
Join Date: Aug 2004
Location: Argentina
About Capacitors for Power Supply you wich of this will be the best Choice?
http://search.digikey.com/scripts/Dk...&name=P6671-ND
http://search.digikey.com/scripts/Dk...name=P10628-ND

or more cheap
http://search.digikey.com/scripts/Dk...me=565-2880-ND

?
  Reply With Quote
Old 29th January 2009, 04:27 AM   #553
samsagaz is offline samsagaz  Argentina
diyAudio Member
 
Join Date: Aug 2004
Location: Argentina
Quote:
Originally posted by Diomedian


Some claim there is very little difference between resistors, and others would claim there is a large difference. You'll find any of these three fine, though the only way to find out which one you prefer (if any) is to try them all.

Here is the typical .47R 3W resistor used in these parts.

http://search.digikey.com/scripts/Dk...=P0.47W-3BK-ND

Ok Thanks, will order these Resistor!
  Reply With Quote
Old 29th January 2009, 04:37 AM   #554
Diomedian is offline Diomedian  Canada
diyAudio Member
 
Join Date: Nov 2004
Location: Halifax, N.S.
Quote:
Originally posted by samsagaz
About Capacitors for Power Supply you wich of this will be the best Choice?
http://search.digikey.com/scripts/Dk...&name=P6671-ND
http://search.digikey.com/scripts/Dk...name=P10628-ND

or more cheap
http://search.digikey.com/scripts/Dk...me=565-2880-ND

?
I forgot to note above that those Yageos are larger than the lead spacing on Peter's boards. If you get those, you'll need to stand them on end, but as noted by Peter and others, there should be no problem doing this.

As for the caps, the first and third ones will work fine. The second one won't fit on Peter's board, as it has too many pins (four or five)

You may find it handy to learn to read the manufacturer's data sheets that are linked on both Mouser's and Digikey's sites. They contain all the info you need to know as long as you dig for it a bit.

-j
  Reply With Quote
Old 29th January 2009, 05:50 AM   #555
samsagaz is offline samsagaz  Argentina
diyAudio Member
 
Join Date: Aug 2004
Location: Argentina
Quote:
Originally posted by Diomedian


I forgot to note above that those Yageos are larger than the lead spacing on Peter's boards. If you get those, you'll need to stand them on end, but as noted by Peter and others, there should be no problem doing this.

As for the caps, the first and third ones will work fine. The second one won't fit on Peter's board, as it has too many pins (four or five)

You may find it handy to learn to read the manufacturer's data sheets that are linked on both Mouser's and Digikey's sites. They contain all the info you need to know as long as you dig for it a bit.

-j
Well thanks too much again! i see what you say about the size of the res, i will purchase the small ones.


Last question for today... About Diodes... the BOM file that i have recommend me 844-MUR3020WTPBF (200V 30A) that cost 2.62USD, is OK to use just Mur860 ones? i found that they just cost 1US instead 2.62.

Will get worst sound using Mur860 than MUR3020 ? 30A is not a little big for this app?
  Reply With Quote
Old 29th January 2009, 11:20 AM   #556
woodturner-fran is offline woodturner-fran  Ireland
diyAudio Member
 
Join Date: Jan 2006
Location: Ireland
Double check the data sheets, but IIRC, the MUR860 doesn't have enough current capability. Might be ok if you are going dual mono though.


Fran
  Reply With Quote
Old 29th January 2009, 12:21 PM   #557
Tea-Bag is offline Tea-Bag  United States
not politcally affiliated
diyAudio Member
 
Tea-Bag's Avatar
 
Join Date: Feb 2006
Location: Kennebunk
F3 and F4 Clone PCB Reissue group buy, also F5 PCBs
Default Diodes

Quote:
Originally posted by samsagaz


Well thanks too much again! i see what you say about the size of the res, i will purchase the small ones.


Last question for today... About Diodes... the BOM file that i have recommend me 844-MUR3020WTPBF (200V 30A) that cost 2.62USD, is OK to use just Mur860 ones? i found that they just cost 1US instead 2.62.

Will get worst sound using Mur860 than MUR3020 ? 30A is not a little big for this app?

Quote:
Originally posted by woodturner-fran
Double check the data sheets, but IIRC, the MUR860 doesn't have enough current capability. Might be ok if you are going dual mono though.


Fran


Sams,
Consider these if ordering from mouser, small, less expensive, high current capable.

512-FFPF30U60STU
  Reply With Quote
Old 29th January 2009, 02:50 PM   #558
samsagaz is offline samsagaz  Argentina
diyAudio Member
 
Join Date: Aug 2004
Location: Argentina
ok, thanks for the tips, will check the 512-FFPF30U60STU

I just want to let you know that i will build all Dual Mono Amps.

what Kind of transformers i need to use if u use Dual Mono?
  Reply With Quote
Old 29th January 2009, 03:53 PM   #559
Diomedian is offline Diomedian  Canada
diyAudio Member
 
Join Date: Nov 2004
Location: Halifax, N.S.
Quote:
Originally posted by samsagaz
what Kind of transformers i need to use if u use Dual Mono?
Elsewhere in this thread, or in the other F5 thread, 300VA 2x18V transformers have been recommended. In general, toroidal transformers are used due to lower EMI (when properly oriented).

-j
  Reply With Quote
Old 29th January 2009, 06:27 PM   #560
Peter Daniel is offline Peter Daniel  Canada
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
F3 and F4 Clone PCB Reissue group buy, also F5 PCBs Send a message via AIM to Peter Daniel
The F3 amp boards are officially sold out, still have all the other boards available.
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote

Reply


F3 and F4 Clone PCB Reissue group buy, also F5 PCBsHide 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

Forum Jump


New To Site? Need Help?

All times are GMT. The time now is 01:30 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki