Reverb/Ringing in Leach Amp - Page 2 - 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 6th November 2001, 08:52 AM   #11
diyAudio Member
 
Join Date: Oct 2001
Location: Palo Alto, CA
Smile Success with new caps

I O'scoped the system as a whole

Leach Amp
Siver Sonic T-14
PSB Century 400

and saw no obvious indications of ringing/oscillations/etc.
(I also checked on the power supply)

so I removed all of the orange drop caps and replaced with much smaller panasonic ECQP polypro and ECWF Met.Polypro.

These also are nothing fancy, but this has made a significant change for the better, female vocals are significantly more 'up front'. In general the sound is much less irritating. So I don't know if the improvement is simply due to the change in caps, or if by changing them out I eleminated the long lead-lengths and stiffened the attachment. (As I mentioned the orange-drop were too big for the board layout). It could also be a little bit of both. In any case things are that much closer to fine. Of course things will never be perfect, otherwise I'd be out of a hobby!

Is it typical for a simple swap of primarily bypass caps to have such a strong impact?

Thanks again to all who offered advice. It has been greatly appreciated and I can only hope to return the favor.

-Pete Kunz
  Reply With Quote
Old 6th November 2001, 09:17 AM   #12
ppl is offline ppl  United States
diyAudio Member
 
ppl's Avatar
 
Join Date: Apr 2001
Location: Seattle, WA U.S.A.
This could be the result of both. But like i stated IMHO orange drops are not good and i dont see what so many High End Audio people see in them.
  Reply With Quote
Old 6th November 2001, 06:24 PM   #13
The one and only
 
Nelson Pass's Avatar
 
Join Date: Mar 2001
I've had excellent results with the Panasonic
polypropylene caps, and of course they're easy
to get from Digikey.
  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
ADC without pre-ringing jzagaja Digital Source 3 3rd July 2007 08:22 AM
multivibrator ringing ? Bazukaz Solid State 3 22nd May 2006 02:26 AM
Ringing midrange JP Haggar Multi-Way 7 17th April 2006 02:33 PM
PSU Ringing Kashmire Pass Labs 1 11th January 2005 08:31 PM
Ringing Mosfets Rog Solid State 1 2nd March 2004 09:21 PM


New To Site? Need Help?

All times are GMT. The time now is 08:48 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