Aleph30 - 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 7th January 2002, 11:47 AM   #1
diyAudio Member
 
Join Date: Dec 2001
Location: Strasbourg (France)
Default Aleph30

Hi,
I have some questions about aleph30.
First,
On the schematic there are three resistors without any value. There are R8?, R8* and R1*. What does it mean ?
I would like to use IRFP244(TO247 case) transistors instead of IRF244(TO3 case). Can this cause sound quality problems or does these transistors sound as good as the TO3 versions?
Thanks for your answers.
  Reply With Quote
Old 7th January 2002, 01:03 PM   #2
diyAudio Member
 
Join Date: Aug 2001
I don't see why different transistor cases can cause sound problems.....

As for the unmarked resistors try running a search on the topic of 'Aleph 30 unmarked resistors'
  Reply With Quote
Old 7th January 2002, 01:03 PM   #3
Freddie is offline Freddie  Sweden
diyAudio Member
 
Join Date: Oct 2000
Location: Sweden
Hi

R1 is used to trim Power Supply Rejection
R8 is used to trim DC Offset

But you don't need those resistors. I'm not going to use those in my Aleph either.

IRFP244 will work very good..

/Freddie
  Reply With Quote
Old 7th January 2002, 06:01 PM   #4
diyAudio Member
 
Join Date: Dec 2001
Location: Strasbourg (France)
Thanks for your answers
  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
BJT for Aleph30 same Pass Labs 1 5th May 2007 03:48 PM
Help Aleph30 Kooka Pass Labs 9 18th February 2007 02:03 PM
Aleph30 very very hot arold19 Pass Labs 7 12th February 2005 01:55 PM
1 Ohm For Aleph30 gema Pass Labs 2 30th May 2002 07:40 PM


New To Site? Need Help?

All times are GMT. The time now is 10:54 AM.


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