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 16th February 2014, 10:35 PM   #1
6JohnS is offline 6JohnS  United States
diyAudio Member
 
Join Date: Feb 2014
Default Threshold Cas-2

I just got back the exact Threshold Cas-2 amplifier I owned back in the early 80's. Unfortunately if has some blown output transistors. I don't have a schematic and it seems impossible to find one. I would be very grateful if someone could get one to me or post one somehow. I am interested in finding the proper transistors to put back in it. My amp currently has 4 different numbers and I don't know which ones are correct, if any? I would very much like to get this amp operational again and any help I can get would be greatly appreciated. Thank You.
  Reply With Quote
Old 16th February 2014, 11:13 PM   #2
llwhtt is offline llwhtt  United States
diyAudio Member
 
Join Date: Jun 2008
Try the next forum down on the menu, PASS LABS, might have better luck there. There was a whole list of Threshold stuff a few days ago.

Craig
  Reply With Quote
Old 16th February 2014, 11:25 PM   #3
6JohnS is offline 6JohnS  United States
diyAudio Member
 
Join Date: Feb 2014
Thanks for the quick reply but I have already searched all the forums I can find and no schematic exists. A schematic would be awesome but if anyone knows which transistors this amp uses I could get some on order or a direct replacement if the originals aren't available any longer. Thank You
  Reply With Quote
Old 17th February 2014, 12:09 AM   #4
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
ask in PL forum

write down transistor numbers and Papa will tell you
__________________
my Papa is smarter than your Nelson !
tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb ; Papatreasure
  Reply With Quote
Old 17th February 2014, 12:56 AM   #5
6JohnS is offline 6JohnS  United States
diyAudio Member
 
Join Date: Feb 2014
Here's a list of the transistors I currently have installed. There are 2 boards that hold 10 transistors each. 1 board for each channel. The forward board which is the right channel has (5) 2N6339 on the left side of the board and the Left channel board (rear board) is exactly the same. The right channel board on the right side has (4) 2N6437 and (1) 2N6438. The left channel board has (4) 2N6437 and (1) unmarked. I don't want to buy or install the incorrect transistors and could use a professionals touch on what goes where. Thanks
  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
Threshold SA/4e & Threshold FET 10 hl Lars Erik Ringen Solid State 0 29th October 2013 12:53 PM
CAS-1 Repair Foothillphile Pass Labs 7 24th May 2013 07:38 AM
THRESHOLD CAS-2 poweramp. brianco Pass Labs 22 1st August 2012 09:48 AM
Threshold CAS 1 thistlehd Pass Labs 15 27th February 2012 08:10 AM
Llano CAS 300 Penguin Solid State 0 27th September 2008 03:56 PM


New To Site? Need Help?

All times are GMT. The time now is 02:53 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