World-Designs-Forum  

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

WD Amplifiers For discusson of World Designs Amplifiers

Reply
 
Thread Tools Display Modes
  #21  
Old 28th November 2016, 09:06 AM
bob orbell bob orbell is offline
Senior Member
 
Join Date: Nov 2009
Location: kettering northants.
Posts: 1,451
Default Re: Another WAD KEL84 Rebuild

With regard to removing the tape / source lettering, a fibre pencil works good, also very good for cleaning PCB copper tracks, don't use too much pressure or you will rub through the lacquer. BOB
Reply With Quote
  #22  
Old 4th December 2016, 01:05 PM
snowman_al snowman_al is offline
Junior Member
 
Join Date: Nov 2016
Location: West Wales
Posts: 16
Default Re: Another WAD KEL84 Rebuild

Between listening sessions (about 35 hours now) and whilst waiting for my new volume pot to arrive, I had time to 'tidy up' the output transformer wiring and wire up the redundant 'source' switch as a 'mute'.

A new 50k pot has now been fitted (shunt modded) and I've been through a few valve variations.

https://goo.gl/photos/SEXXnSdSArtsGCdF9

It's sounding really sweet now, with Mullard ECF80s and Russian 6P14P-EBs currently. Bass notes are very clear and not lost in the mix. The 6P14Ps improve the lead edge a little over the JJs. The mids are smooth as you would expect. The top end 'edge' that was evident when I first obtained the amp has completely gone. The Mullards just have a bit more warmth / detail / clarity than the Edicrons, that have a drier sound. All round remarkably well sounding which ever you choose.

And just to say thanks again to everyone for their help and advice. Alan
Reply With Quote
Reply

Thread Tools
Display Modes

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 11:16 PM.


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright World Designs