New Aleph Mini PCB GB - Page 83 - 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 17th January 2006, 05:51 AM   #821
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
Quote:
Originally posted by winslow
I'd need some help with SMD...not to that point soldering.

I thought the through hole boards were nice, and very easy to assemble...
i'd offer it to people as a option
  Reply With Quote
Old 17th January 2006, 09:28 AM   #822
diyAudio Member
 
Join Date: Dec 2002
Location: dry ol Melbourne Australia
Default into 16 ohms

Any thoughts on how many watts the 10 (or the 30 watter) would produce into a 16 ohm driver (obvously not ideal) - a straight 50 %: i.e. 5 or 15 watts?

How could the PS be done, to reduce the “drop”?

Thanks
  Reply With Quote
Old 17th January 2006, 09:29 AM   #823
diyAudio Moderator
 
pinkmouse's Avatar
 
Join Date: Apr 2002
Location: Chatham, England
Jason, can you start a new thread on this PCB please.
__________________
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote
Old 17th January 2006, 02:15 PM   #824
winslow is offline winslow  United States
diyAudio Member
 
Join Date: Aug 2005
Thanks J. That would be cool, and while I might have to take you up on the option, it sure would take some of the fun away from building the amps.

God, I must be insane saying that soldering an amp kit is fun...lol.
  Reply With Quote
Old 18th January 2006, 05:43 AM   #825
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
Link and post made

http://www.diyaudio.com/forums/showt...585#post819585
  Reply With Quote
Old 18th January 2006, 09:38 AM   #826
diyAudio Moderator
 
pinkmouse's Avatar
 
Join Date: Apr 2002
Location: Chatham, England
Thanks mate. It just keeps things a bit more organised for newcomers, y'know.
__________________
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote
Old 19th January 2006, 09:29 PM   #827
SteveA is offline SteveA  United States
diyAudio Member
 
Join Date: Dec 2001
Location: St Paul, MN
Default Mini/A30 ?

Measurement question

Sorry, don't mean to hijack thread but.....
I bought 4 sets of the Mini/A30 boards from BrianGT. I stuffed one set as Mini's and three sets as Aleph 30's. I finished an A5 about a year ago where I learned (courtesy BDP) how to make the voltage measurements prior to installing the output boards/devices.

On all eight boards I see the ~9V drop across Z5, ~4.1Vgs on Q3, ~3.9Vgs on Q1,Q2. On seven boards I see ~4V drop across the 392R resistor (R18), the last board (an A30) I measure a drop of ~2.7V. Seven of the boards would seem to be good to go. Is this 2.7 V too low (ie, do I need to chase down the offending part(s))?

This resistor "sits" between the -V supply and the drain of Q2 and would seem to define the voltage drop across that resistor (I measured 2.7 volts between these points as well). What would cause the drain to be 1.3-2.3V too negative (Is Q2 the problem?)?

Thanks,
SteveA
  Reply With Quote
Old 29th January 2006, 09:54 PM   #828
diyAudio Member
 
Join Date: Feb 2004
Location: Racine, Wisconsin
Progress...

This is the bottom of chassis for my Mini/30 4 channel

Ya baby!
Attached Images
File Type: jpg p1300019.jpg (60.7 KB, 1057 views)
  Reply With Quote
Old 29th January 2006, 09:56 PM   #829
diyAudio Member
 
Join Date: Feb 2004
Location: Racine, Wisconsin
and another...
Attached Images
File Type: jpg p1300022.jpg (57.2 KB, 977 views)
  Reply With Quote
Old 29th January 2006, 09:57 PM   #830
diyAudio Member
 
Join Date: Feb 2004
Location: Racine, Wisconsin
the whole thing...
Attached Images
File Type: jpg p1300023.jpg (90.5 KB, 1040 views)
  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
mini-aleph versus aleph-3 rmgvs Pass Labs 7 4th February 2010 03:18 PM
Mini Aleph Board & Aleph 2 Parts List gpsmithii Pass Labs 3 16th January 2010 03:58 AM
Aleph Mini / Aleph 3 PCB ready (?) croccodillo Pass Labs 5 27th July 2009 01:51 PM
Difference between Aleph J and Aleph J Mini ppmmcc Pass Labs 5 17th May 2008 06:10 PM
WTB: Aleph-mini PCBs and transistor set for Aleph 30 needtubes Swap Meet 4 6th November 2005 06:29 PM


New To Site? Need Help?

All times are GMT. The time now is 03:18 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