Threshold 800A and other old models: Mospec 2N5876/2N5878 or ON MJ21193/MJ21194 ? - 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 20th October 2009, 11:15 AM   #1
diyAudio Member
 
tiefbassuebertr's Avatar
 
Join Date: Jul 2005
Location: D-55629 Schwarzerden
Default Threshold 800A and other old models: Mospec 2N5876/2N5878 or ON MJ21193/MJ21194 ?

I discover the follow websites from Mospec:
POWER TRANSISTORS
CONTACT US
and I note, that there offer the most old Motorola BjT power devices.
So I must ask, what is the better solution for replace:
to choice the Mospec with original type number or the ON successors from Motorola?
Because I haven't the possibility of analyzing the P-spice parameter, I can't find clearly the right answer
  Reply With Quote
Old 25th October 2009, 02:15 AM   #2
diyAudio Member
 
Join Date: Jan 2008
Location: Bountiful, You-Taw
It has been my experience that many times those semiconductor places require minimum orders of devices. I don't know this place but I buy high power obsolete MOSFETS used for xenon switching power supplies from one place in China and I have to buy at least 24 pieces each time.

Mark
  Reply With Quote
Old 20th December 2009, 02:45 PM   #3
diyAudio Member
 
tiefbassuebertr's Avatar
 
Join Date: Jul 2005
Location: D-55629 Schwarzerden
A curve tracer about
DIY Curve Tracer for PC
and a additional CAD supported P-Spice analysing certainly would be find out this

In this case the last posts of
bipolar (bjt) transistor families for audio power output stages
could be of interest

Last edited by tiefbassuebertr; 20th December 2009 at 02:48 PM.
  Reply With Quote
Old 21st December 2009, 01:39 AM   #4
The one and only
 
Nelson Pass's Avatar
 
Join Date: Mar 2001
Quote:
Originally Posted by tiefbassuebertr View Post
So I must ask, what is the better solution for replace:
to choice the Mospec with original type number or the ON successors from Motorola?
It looks like the On Semi parts will drop right in, and they
have more current and dissipation. I would go for them.

  Reply With Quote
Old 7th March 2013, 03:51 PM   #5
diyAudio Member
 
Join Date: Jun 2012
Location: i live in mexico city, mexico
Quote:
Originally Posted by Nelson Pass View Post
It looks like the On Semi parts will drop right in, and they
have more current and dissipation. I would go for them.

HELLO MR. PASS, IS THERE ANYPLACE I CAN GET A COPY OF THE FET-9 MAUAL. I SEEM TO HAVE LOST MINE OVER THE YEARS,. BUT I AM EXTREMELY HAPPY WITH MY STASIS S/500 POWER AMP AND MY FET-9 PRE-AMP. THANK YOU ,ALLAN ROTHMAN
  Reply With Quote
Old 7th March 2013, 04:44 PM   #6
The one and only
 
Nelson Pass's Avatar
 
Join Date: Mar 2001
I'm sorry, but I don't seem to have a copy.

  Reply With Quote
Old 7th March 2013, 08:39 PM   #7
diyAudio Member
 
Join Date: Jun 2012
Location: i live in mexico city, mexico
Quote:
Originally Posted by Nelson Pass View Post
I'm sorry, but I don't seem to have a copy.

OK THANKS ANYWAY, APPRECEATE YOUR AT LEAST ANANSWERING. THANK YOU, ALLAN ROTHMAN
  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
MJ21193/MJ21194 (MJ 21193 21194) - no data for SOA during dc conditios tiefbassuebertr Solid State 5 4th September 2009 01:01 PM
Threshold 800A and 800S R-K Rønningstad Pass Labs 13 30th April 2006 10:43 PM
Motorola MJ21194 MJ21193 MJ15023 high-power output transistors rkc7 Swap Meet 4 31st December 2005 11:42 PM
Threshold 800A Help! koumbar Pass Labs 3 8th October 2005 03:11 PM
Threshold 800A assistance koumbar Pass Labs 2 1st March 2005 08:48 PM


New To Site? Need Help?

All times are GMT. The time now is 08:54 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