Threshold Stasis 2. - Page 6 - 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 28th June 2007, 04:06 AM   #51
diyAudio Member
 
VintageAmp's Avatar
 
Join Date: Feb 2007
Location: Citrus Heights, Ca.
Default Stasis Offset

It is also possible to match up the differential pair of transistors. The available parts are A 18. A pair of 6571 was often used during the manufacture of these units. If one of these devices is damaged, the offset will go out of spec. I always look for less then +/-50 mV
JonS
__________________
Vintage Amp
  Reply With Quote
Old 28th June 2007, 02:56 PM   #52
diyAudio Member
 
Join Date: Mar 2006
Location: Tallahassee, FL
Jon, I think that I just may ship you one of my Stasis 2s and let you get it back in shape for me.

Thank you Nelson and Jon!
__________________
Forrest
  Reply With Quote
Old 29th August 2007, 06:59 AM   #53
diyAudio Member
 
Join Date: Mar 2007
Jon,

Listening to Stan Getz and Astrud and Astrud Gilberto via iTunes (MacBook Pro) through a 400A (picked up a couple months ago) with Hafler 101 and a pair of Dynaco A-25s. Vintage system sounds quite nice with the 400A on AR-3as and Klipsch Forte IIs. Have not hooked the 400A to the "The AR turntable" or the small Maggies or the Infinity Primus 360s on the other end of the living room yet.

Question re powering up the 400A: I did not realize that I should have (or should I have not)cycled the power switch on the front panel on the 400A a number of times with the power off before firing it up for the first time (I don't have a variac). The first couple of times I powered the 400A up I heard (and saw) sparks from the front panel switch. The amp now is left with the front panel power switch in the "on" position and I power it up through a Discwasher 'Spikemaster' and all sounds OK to me. Should I continue with this set-up or am I asking for a disaster?

I'm also running a small (Honeywell) fan just at the edge of the 400A for cooling and am wondering if the differential in cooling between the edge with the fan vs the other side could create pproblems over time? The temp without the fan does not seem excessive (using the fingers on the cooling fins for ten seconds test)

I'm located on St Simons Island, Georgia but used to teach occasionally in Citrus Heights at the University of New haven (Connecticut) when they had a campus in Citrus Heights.

Sorry if this post is in the wrong 'pew' but was hoping to get your take on this, Jon. Thanks . . .

Pre- Threshold 400A - Klipsch vintage system is at:
http://forum.stereophile.com/photopo...cat/all/page/1
Attached Images
File Type: jpg 2393kevins_vintage_stereo_system-med.jpg (38.8 KB, 335 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
threshold stasis 2 docjoe Solid State 3 10th November 2012 12:05 PM
Another Threshold Stasis 2 rebuild AMV8 Pass Labs 2 22nd December 2006 05:13 AM
Threshold Stasis 3, too Roscor61 Pass Labs 3 20th May 2004 09:12 AM
Threshold Stasis S/300-2 optical a-ab georgehifi Solid State 3 30th September 2003 02:18 PM


New To Site? Need Help?

All times are GMT. The time now is 04:21 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