NTE transistors-->> Backwards from original case layout!! What the heck! - diyAudio
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 10th May 2009, 02:28 AM   #1
777funk is offline 777funk  United States
diyAudio Member
 
Join Date: Feb 2007
Location: MO
Default NTE transistors-->> Backwards from original case layout!! What the heck!

I just fixed my old pioneer stereo (2 bad power transistors, 1 emitter Resistor and 1 driver bad).

Anyways, I bought an NTE part number match replacement for the driver. I wired it all up and the fixed channel sounded like it had really bad distortion. Anyways, I figured it was the driver so I put the pioneer amp back on the bench and diode tested across the driver. I measured the old one and figured out that it was PNP. The NTE replacement was also PNP. However the shape of the transistor (your typical D shape)D was backwards according to the diode test from the original orientation that the original pioneer transistor had. But that's the way the diode test showed it was right in comparison to the good transistor on the other side.

Long story short, I turned the transistor backward from how Pioneer had it and perfect. It works! What's the deal with NTE? Can't they make the case direction the same as the original part?

Is this normal for NTE? If so I will avoid them. If I buy a replacement part, I want it to be just like the original.
  Reply With Quote
Old 10th May 2009, 02:49 AM   #2
jaycee is offline jaycee  United Kingdom
diyAudio Member
 
Join Date: Apr 2004
Location: Norwich, UK
NTE sub parts are well known to be junk. Forget about them.
  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
My Transistors, original or copy? anatech Parts 560 19th July 2014 06:52 PM
how to backup original cd as the same sound quality as original cd ctrn Music 3 16th May 2006 04:21 PM
What the heck have I done..!? lazyfly Chip Amps 3 24th August 2004 09:27 AM


New To Site? Need Help?

All times are GMT. The time now is 07:40 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