World-Designs-Forum  

Go Back   World-Designs-Forum > World Designs > WD Amplifiers
Register FAQ Members List Calendar Gallery Today's Posts Mark Forums Read

WD Amplifiers For discusson of World Designs Amplifiers

Reply
 
Thread Tools Display Modes
  #1  
Old 9th October 2021, 07:51 PM
Imathews Imathews is offline
Junior Member
 
Join Date: Oct 2021
Location: Clacton-on-Sea
Posts: 3
Default Help finding KEL84 build instructions

Hello all.

I am a completely new to tube amps, having just purchased a second hand KEL84 amp. I believe the PCB is issue 2. I just wondered if anybody could sell me a copy of the build instructions as I wish to do a few modifications to it. I really appreciate any help offered. Thanks
Reply With Quote
  #2  
Old 9th October 2021, 08:30 PM
bob orbell bob orbell is offline
Senior Member
 
Join Date: Nov 2009
Location: kettering northants.
Posts: 2,734
Default Re: Help finding KEL84 build instructions

Hi and welcome, I suggest you EMAIL our admin Matthew Snell, he will sort this out for you, at the bottom right side of the page you will find his EMAIL contact. Bob
Reply With Quote
  #3  
Old 9th October 2021, 11:36 PM
Pingushome Pingushome is offline
Senior Member
 
Join Date: Feb 2006
Location: Wales
Posts: 221
Default Re: Help finding KEL84 build instructions

Quote:
Originally Posted by Imathews View Post
Hello all.

I am a completely new to tube amps, having just purchased a second hand KEL84 amp. I believe the PCB is issue 2. I just wondered if anybody could sell me a copy of the build instructions as I wish to do a few modifications to it. I really appreciate any help offered. Thanks
Welcome to the forum.
You’ll love the amp, I bought one last year from a forum member to use in a second system and it’s great. Thinking of using it as the main amp.
Good luck, everyone on here will help with queries and they/are very knowledgeable too (far more than I)
Martin
Reply With Quote
  #4  
Old 10th October 2021, 08:58 AM
Imathews Imathews is offline
Junior Member
 
Join Date: Oct 2021
Location: Clacton-on-Sea
Posts: 3
Default Re: Help finding KEL84 build instructions

Hello All,

Thanks for replying to my post.

Yes it does sound a great amp. This is my first tube amp, having used solid state NAD equipment in various permutations for years and it does sound great!!

Hopefully, I'll be upgrading the capicitors and just having a little fiddle with things to try and gain a better understanding of how tube amps work. It looks like the start of a very interesting hobby!

Again , many thanks for your help
Ian
Reply With Quote
  #5  
Old 10th October 2021, 10:30 AM
bob orbell bob orbell is offline
Senior Member
 
Join Date: Nov 2009
Location: kettering northants.
Posts: 2,734
Default Re: Help finding KEL84 build instructions

Ian, you would do better putting your attention to the power supply, the better the supply, IE less ripple, and smoother DC, the better the amplifier will sound, so, fast recovery diodes in the HT supply and low ESR capacitors for better smoothing, even by passing the main smoothing capacitors with small ceramics, this should show a much cleaner and more detailed sound, try it, you will not be disappointed. Bob
Reply With Quote
  #6  
Old 10th October 2021, 02:18 PM
Imathews Imathews is offline
Junior Member
 
Join Date: Oct 2021
Location: Clacton-on-Sea
Posts: 3
Default Re: Help finding KEL84 build instructions

Hi,

Thanks for your reply.
I will look in to what you have suggested. Many thanks
Reply With Quote
  #7  
Old 10th October 2021, 02:22 PM
John Caswell John Caswell is offline
Super Moderator
 
Join Date: Dec 2005
Location: Wokingham, Berkshire
Posts: 1,780
Default Re: Help finding KEL84 build instructions

Remember the golden rules - "Only do one mod at a time"
Don't bend component leads hard against the PCB - This is HiFi not rockets.
If in doubt ask!

John
Reply With Quote
Reply

Tags
build instructions kel84


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
Forum Jump


All times are GMT +1. The time now is 06:09 PM.


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright World Designs