Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 26th January 2010, 11:07 AM   #1
diyAudio Member
 
tiefbassuebertr's Avatar
 
Join Date: Jul 2005
Location: D-55629 Schwarzerden
Default Power Devices for old Power Amplifier's from MOSPEC - Quality Standart like "ON" ?

The brand MOSPEC
:: Welcome :: MOSPEC SEMICONDUCTOR
offers a wide range of BjT types used in older power amplifiers:
:: Welcome :: MOSPEC SEMICONDUCTOR::POWER TRANSISTORS
unfortunately their datasheets are more short form

who knows more about the quality standart of this brand ?
  Reply With Quote
Old 26th January 2010, 12:00 PM   #2
wahab is offline wahab  Algeria
diyAudio Member
 
Join Date: Nov 2009
Location: algeria/france
a member said that hey are poor quality devices...
a pity , as they pretend to produce the
famed 2sa1302/2sc3281...
anyway, there s plentyfull of good devices from
the sanken, toshiba, or even fairchild and onsemi
that have good guaranted performances...
  Reply With Quote
Old 26th January 2010, 01:45 PM   #3
diyAudio Member
 
tiefbassuebertr's Avatar
 
Join Date: Jul 2005
Location: D-55629 Schwarzerden
I would be very happy to have accurate analysis resp. comparable tests results (the question is, who make this?).
A wide range of technican believe that copied semiconductor from Far East are automatically unusable.
But the fact "Made in Taiwan" does not automatically mean "bad quality"

Simple estimates are not helpful.
  Reply With Quote
Old 26th January 2010, 01:59 PM   #4
diyAudio Member
 
jacco vermeulen's Avatar
 
Join Date: Oct 2004
Location: At the sea front, Rotterdam or Curaçao
Send a message via Yahoo to jacco vermeulen
Quote:
Originally Posted by tiefbassuebertr View Post
quality standart of this brand ?
Compare the datasheets of a Sanken 2SC2922 and Mospec 2SC2922
__________________
BOXES for crying out loud
  Reply With Quote
Old 24th February 2011, 04:14 PM   #5
ontoaba is offline ontoaba  Indonesia
diyAudio Member
 
ontoaba's Avatar
 
Join Date: Nov 2009
Location: Kudus, Malang, Dieng
I just found this thread.
I have using some C2922/A1216 from MOSPEC about 8years ago, and doing some short test. I am only blowing two of them, may be enough for the test. As I remember, it is tougher than the spec on datasheet. Also has much lower Rbe, that indicates more electron mobility and heavier. They has the same numbering but cannot be used as replacement, too much differences, too slow and heavy compared to SANKEN, but may tougher when without heatsink isolator.
  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
Power Amplifier Models from the old UK brand "POWER" tiefbassuebertr Solid State 14 14th July 2013 05:27 PM
What Does Fostex "Rated Input" and "Music Power" mark02131 Full Range 5 13th October 2012 05:18 AM
Can you help me choose capacitors for my amplifier's power supply? Kuja Power Supplies 3 12th March 2007 04:03 PM
Fostex "rated input" and "music power" hugz Full Range 12 16th March 2006 04:33 PM
Standart gains and voltage levels for standart audio eq Paracelsus Tubes / Valves 0 30th April 2004 06:16 PM


New To Site? Need Help?

All times are GMT. The time now is 02:17 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