trinityamps.com

Trinity Amps Guitar Amp Forum
It is currently Tue Jul 02, 2024 9:57 am

View unanswered posts | View active topics


Board index » On Stage » 18 Watt

All times are UTC - 5 hours [ DST ]



Post new topic Reply to topic  Page 1 of 1
  [ 4 posts ] 
  Previous topic | Next topic 
Author Message
JGK
PostPosted: Fri Mar 09, 2012 12:21 pm 
Offline
Friend
Friend

Joined: Fri Nov 14, 2008 1:28 am
Posts: 36
Location: Woodland Park, CO
I was wondering if anyone has added an additional filtering after the rectifer I was thinking of adding a 30ohm 500volt filter cap right after the ez81. JGK

_________________
JGK
Top
 Profile  
 
kurtlives
PostPosted: Fri Mar 09, 2012 1:07 pm 
Offline
Expert
Expert
User avatar

Joined: Sun Feb 17, 2008 4:47 pm
Posts: 960
Location: Toronto, Canada.
JGK wrote:
I was wondering if anyone has added an additional filtering after the rectifer I was thinking of adding a 30ohm 500volt filter cap right after the ez81. JGK

By 30ohm I assume you mean 30uF?
Why do you want to do this?

The maximum reservoir cap the EZ81 can handle is 50uF so 60uF (two 30uFs in parallel) won't work. The best you can do is tack on another 20uF on top of the stock 30uF cap.

_________________
http://pdfelectronics.com
Top
 Profile  
 
JGK
PostPosted: Fri Mar 09, 2012 3:54 pm 
Offline
Friend
Friend

Joined: Fri Nov 14, 2008 1:28 am
Posts: 36
Location: Woodland Park, CO
Your right 30uF had a brain cramp there. I have a little hum in the amp after working on the layout and moving wires and was wondering if an additional filter would help this. JGK

_________________
JGK
Top
 Profile  
 
kurtlives
PostPosted: Fri Mar 09, 2012 5:58 pm 
Offline
Expert
Expert
User avatar

Joined: Sun Feb 17, 2008 4:47 pm
Posts: 960
Location: Toronto, Canada.
I'd try moving wires (lead dress) and swapping different tubes to reduce noise before making circuit changes (like adding additional filtering).

Increased filtering will change the tone as well as the ripple voltage (noise) too, just so you know.

_________________
http://pdfelectronics.com
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 4 posts ] 

Board index » On Stage » 18 Watt

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 9 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group