what type of inductor - 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 25th March 2004, 06:24 PM   #1
diyAudio Member
 
MEGA_amp's Avatar
 
Join Date: Oct 2003
Location: CT
Default what type of inductor

Progress is slow going on my Aleph 2. I looked around but, i'm looking for a definitive answer about what type of inductor to use.

I've been looking at 12 ga. air core 2.2mH inductors. What are the advantages/disadvantages of using this type of inductor vs. the foil type inductor? From what i've read foil is better than regular wire wound inductor.

Thanks in advance

John
  Reply With Quote
Old 25th March 2004, 09:09 PM   #2
diyAudio Member
 
MEGA_amp's Avatar
 
Join Date: Oct 2003
Location: CT
Default Shoulda looked harder

Copper coil inductor vs. round core inductor



I've seen people using the foil type, but is it preferred soundwise overall, compared to the wirewound aircore.


Thanks
John
  Reply With Quote
Old 25th March 2004, 09:20 PM   #3
diyAudio Member
 
Brian Donaldson's Avatar
 
Join Date: Jan 2003
Location: Texas, Love it or leave it
The only real concern is to keek the resistance down so the thing doesn't melt the insulation and short. I don't see how the conductor's shape (wire or foil) could make a difference. It's only filtering 120 hz ripple and is decoupled from the amp by the second bank of caps
  Reply With Quote
Old 25th March 2004, 10:02 PM   #4
diyAudio Member
 
Join Date: Dec 2002
Location: Houston
Default Re: what type of inductor

Quote:
Originally posted by MEGA-amp
Progress is slow going on my Aleph 2. I looked around but, i'm looking for a definitive answer about what type of inductor to use.

I've been looking at 12 ga. air core 2.2mH inductors. What are the advantages/disadvantages of using this type of inductor vs. the foil type inductor? From what i've read foil is better than regular wire wound inductor.

Thanks in advance

John
For power supply filtering, I have been using cheap ferrite e-core chokes. The advantage is size and cost.
For something like a Aleph 2, an air core choke of 2.2 mH and a current capacity of 10 amps or so is very large.
My amps are much lower current than a 2, but a 2.7 mH, 6 amp choke was 5.95 at the local emporium. It would fit in your hand, 2 -3 pounds.

George
  Reply With Quote
Old 25th March 2004, 10:43 PM   #5
diyAudio Member
 
Join Date: Feb 2001
Location: Columbia, SC
My two cents worth is that the foil inductors would be wasted. Use regular wire inductors. Save the foil inductors for your speakers.

Grey
  Reply With Quote
Old 25th March 2004, 10:49 PM   #6
diyAudio Member
 
MEGA_amp's Avatar
 
Join Date: Oct 2003
Location: CT
Why is it always a penny for your thoughts, but you put your two cents in, somebodys making a penny here.


---steven wright


Thanks for the info
JH
  Reply With Quote
Old 25th March 2004, 11:04 PM   #7
Magura is offline Magura  Denmark
diyAudio Member
 
Magura's Avatar
 
Join Date: Oct 2003
Location: Denmark, Viborg
2.2mH air core 600W inductors are actually not that big. I made a few a while ago. For lots of power theyre un-beatable.

Magura
__________________
Everything is possible....to do the impossible just takes a little while longer.
www.class-a-labs.com
  Reply With Quote
Old 26th March 2004, 01:18 AM   #8
diyAudio Member
 
Join Date: Feb 2001
Location: Columbia, SC
There's a sign tacked on the wall here at work that says,"Every minute you're mad, you've lost a second of happiness."
I want to know what happened to the other 59 seconds.

Grey
  Reply With Quote
Old 26th March 2004, 01:34 AM   #9
Magura is offline Magura  Denmark
diyAudio Member
 
Magura's Avatar
 
Join Date: Oct 2003
Location: Denmark, Viborg
Quote:
Originally posted by MEGA-amp
Why is it always a penny for your thoughts, but you put your two cents in, somebodys making a penny here.


---steven wright


Thanks for the info
JH

2 cents is almost the same as a penny.....you see the reason it turnes out to be 2 cents and not 1.8 cent, is the exchange fee of the bank.

Magura
__________________
Everything is possible....to do the impossible just takes a little while longer.
www.class-a-labs.com
  Reply With Quote
Old 26th March 2004, 04:05 AM   #10
moe29 is offline moe29  United States
diyAudio Member
 
moe29's Avatar
 
Join Date: Dec 2002
Location: Florida
Send a message via AIM to moe29 Send a message via Yahoo to moe29
These are the inductors i used in my Aleph 2. They're 2mH.
I used to get them from MCM... but they quit stocking them, last time i looked.
Attached Images
File Type: jpg inductors.jpg (45.5 KB, 609 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
Copper coil inductor vs. round core inductor tomchaoda Pass Labs 7 21st September 2011 05:42 AM
air core inductor vs. iron core inductor WBS Planars & Exotics 5 8th May 2007 12:02 AM
Re : BL type & GR type of transistor for Aleph-Ono Arion Pass Labs 4 29th January 2007 07:15 PM
SOZ inductor Mad_K Pass Labs 1 23rd January 2003 09:11 PM
inductor value SvErD Parts 5 1st October 2002 12:22 AM


New To Site? Need Help?

All times are GMT. The time now is 09:15 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