Upgrading Dynaco ST-400 - 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 4th October 2007, 02:10 AM   #1
diyAudio Member
 
Join Date: Jan 2006
Location: Mentor, Ohio
Default Upgrading Dynaco ST-400

I have a Dynaco ST-400 that seems to be all original. I would like to go through and upgrade it with some newer components. I plan on replacing some of the capacitors, certain resistors and bypass the Dynaguard. I'm not an electronics "expert" but I can get by. What else should I do while I have the amp apart? Anyone have any info any problem areas that should be addressed with this amp?
  Reply With Quote
Old 14th February 2008, 07:55 PM   #2
diyAudio Member
 
Join Date: Jun 2004
Location: Beograd
Default dynaco update

Hello,

There is an article in TAA (The Audio Amateur) 3/83 by Bill Rollins about an update of the stereo 400. I have a copy on paper, but not yet in electronic form.I'll try to scan it as soon as I can and mail it to you if you are interested.
All best
  Reply With Quote
Old 16th February 2008, 05:05 PM   #3
d3imlay is offline d3imlay  United States
diyAudio Member
 
Join Date: Sep 2004
Location: Ohio
If this was a kit built unit, the build quality is suspect. Look for poor/improper connections and bad solder joints.
  Reply With Quote
Old 16th February 2008, 07:24 PM   #4
diyAudio Member
 
Join Date: Jan 2008
Default More juice

This could help you
  Reply With Quote
Old 19th May 2010, 04:46 PM   #5
bigyank is offline bigyank  United States
diyAudio Member
 
Join Date: Jul 2004
Location: Phila, PA
Quote:
Originally Posted by audiobard View Post
Hello,

There is an article in TAA (The Audio Amateur) 3/83 by Bill Rollins about an update of the stereo 400. I have a copy on paper, but not yet in electronic form.I'll try to scan it as soon as I can and mail it to you if you are interested.
All best
I am getting ready to dive into a ST-400 rebuild and wondered if this article you reference was ever scanned in?

Yank
  Reply With Quote
Old 20th May 2010, 06:36 AM   #6
diyAudio Member
 
Join Date: Jun 2004
Location: Beograd
Hi bigyank,boostin1989
Pls send me your e-mail.
  Reply With Quote
Old 20th May 2010, 11:54 AM   #7
bigyank is offline bigyank  United States
diyAudio Member
 
Join Date: Jul 2004
Location: Phila, PA
I just did thanks for getting back to me.

Yank
  Reply With Quote
Old 20th May 2010, 12:44 PM   #8
lowpoke is offline lowpoke  Australia
diyAudio Member
 
Join Date: Mar 2009
Location: Australia
Send a message via Skype™ to lowpoke
Or if you really want to change it up some, you can give it a $1300 Van Alstine makeover.
__________________
Show us what ya got at Homebuilt Hi-fi
  Reply With Quote
Old 20th May 2010, 12:55 PM   #9
diyAudio Member
 
Join Date: Jun 2004
Location: Beograd
Bigyank check your inbox )
  Reply With Quote
Old 20th May 2010, 01:13 PM   #10
bigyank is offline bigyank  United States
diyAudio Member
 
Join Date: Jul 2004
Location: Phila, PA
Got it thanks. I am definitely aware of Frank's work and the Insight amp. My issue is that my amp has the meter option and I would miss them.

Yank
  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
preamp suitable for Dynaco st-70- OTHER than dynaco namatjira Tubes / Valves 3 22nd December 2011 01:21 AM
Upgrading an op amp in mic pre?? synap2012 Chip Amps 3 7th May 2008 02:26 PM
Upgrading DM2 beamnet Multi-Way 2 7th December 2007 03:00 PM
Upgrading R50 KEF TL essence Multi-Way 26 29th January 2007 09:15 PM


New To Site? Need Help?

All times are GMT. The time now is 03:44 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