aleph P1.7 layout share - 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 1st August 2005, 08:25 AM   #1
digi01 is offline digi01  China
diyAudio Member
 
digi01's Avatar
 
Join Date: Mar 2003
Location: BEIJING
Send a message via MSN to digi01
Default aleph P1.7 layout share

hello everyone,
here is my P1.7 layout,the project is still in progress.
the attached file is the main board.I am going to make a sub board for those big caps(option).

P.S.
the main board has room for blackgate BP caps.
thanks Igor for his great help.

honest
Z'


EDIT:file update.
Attached Files
File Type: pdf p1.7.pdf (28.2 KB, 978 views)
  Reply With Quote
Old 1st August 2005, 09:15 AM   #2
digi01 is offline digi01  China
diyAudio Member
 
digi01's Avatar
 
Join Date: Mar 2003
Location: BEIJING
Send a message via MSN to digi01
sub board,
Attached Files
File Type: pdf sub.pdf (5.7 KB, 639 views)
  Reply With Quote
Old 2nd August 2005, 06:28 PM   #3
tim845 is offline tim845  Hong Kong
diyAudio Member
 
Join Date: May 2004
Location: hk
Hi, me Chinese too !

Your PCB looks very condense and very nice ! currently I also plan to make Aleph P1.7 too! I placed an order from DIYZONE for the chasis, regarding the PCB, i will use multi-purpose PCB and try to condense it into a very little piece of two channels ! i.e. point to point wiring. Your PCB work seems fit to me !!!

what is your vol. control? is it make of relays or what?

thanks for your sharing.

Tim
  Reply With Quote
Old 2nd August 2005, 06:28 PM   #4
tim845 is offline tim845  Hong Kong
diyAudio Member
 
Join Date: May 2004
Location: hk
Oh, Z', by the way, do you know the bias current for the gain stage?

Thanks

Tim
  Reply With Quote
Old 4th August 2005, 08:42 AM   #5
digi01 is offline digi01  China
diyAudio Member
 
digi01's Avatar
 
Join Date: Mar 2003
Location: BEIJING
Send a message via MSN to digi01
thank you tim845.
I am doing some modification now:
#increase the lead spacing for all resistors to be able to use Dale RN60 or Holco resistors
#Increase the lead spacing for C21 and C23
#baybass C25 and C26 with small value capacitors
#increase the lead spacing or add a second hole for bybass capacitors to be able to use 5 mm or 7.5 mm PCM capacitors
#more space between bybass capacitors and C9-C16
#use terminal block for all inputs and outputs and also add some holes if we want to use both
#wider traces
#round all squere traces
#name for C23 is missing
#add a sentence: PASSLABS not for comercial use

can we separate inputs and outputs?

thanks pass and everyone
  Reply With Quote
Old 4th August 2005, 12:20 PM   #6
tim845 is offline tim845  Hong Kong
diyAudio Member
 
Join Date: May 2004
Location: hk
Hi, digi01

I won't seperate the inputs/outputs and I will make it as short as possible. Electrolite cap will be used for the outputs which will save more space than film or plastic cap.

currently, except the power cap, all the rests have been bought, the outputs is using black gate, but only 50V rating and I think it doesn't matter.

once get the power cap, the work will be started.

btw, what kind of volumn you will use? using relays or what ? I will use step volumn.


look forward your master piece !!
  Reply With Quote
Old 5th August 2005, 03:18 AM   #7
digi01 is offline digi01  China
diyAudio Member
 
digi01's Avatar
 
Join Date: Mar 2003
Location: BEIJING
Send a message via MSN to digi01
Quote:
what kind of volumn you will use? using relays or what ? I will use step volumn.
I plan to use step volume too.my friend use dact.

Revision NO001 is completed.
Attached Files
File Type: pdf p1.7no001.pdf (37.1 KB, 563 views)
  Reply With Quote
Old 5th August 2005, 03:20 AM   #8
digi01 is offline digi01  China
diyAudio Member
 
digi01's Avatar
 
Join Date: Mar 2003
Location: BEIJING
Send a message via MSN to digi01
usb board,I have add bybass caps.
Attached Files
File Type: pdf p1.7no001-sub.pdf (8.2 KB, 383 views)
  Reply With Quote
Old 5th August 2005, 07:41 AM   #9
diyAudio Member
 
Join Date: Jun 2005
Location: Dallas, Texas
Default whos that in the mirror

Digi....

Nice layout. I'm impressed it can be done in single layer.

I have one small suggestion while you're doing mods...

The inputs and outputs are at the extreme opposite sides of
the board. The signals are "differential" and they are supposed
to be routed together - that way the noise cancels. I don't
know if it's important inside a metal chassis - but as a "fix"
you could take advantage of the symmetry you already have
in the layout....

If you divide the layout down the middle where there's nothing,
and then move the left side to the right and the right side
the the left, you'll have the same layout except the signals
will be together in the middle of the board.

Don't know if its at all important.... just an idea.

W.
  Reply With Quote
Old 5th August 2005, 07:58 AM   #10
digi01 is offline digi01  China
diyAudio Member
 
digi01's Avatar
 
Join Date: Mar 2003
Location: BEIJING
Send a message via MSN to digi01
Hi W,
thank you,the idea is very good for me.I will consider it

cheers
Z'
  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
REGULATOR PSU protel layout share digi01 Chip Amps 30 3rd November 2008 05:36 AM
3886IGC protel layout share digi01 Chip Amps 16 7th June 2004 03:27 AM


New To Site? Need Help?

All times are GMT. The time now is 12:19 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