World-Designs-Forum  

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

WAD Problems For questions and answers re older World Audio Design Projects

Reply
 
Thread Tools Display Modes
  #1  
Old 11th June 2021, 08:39 PM
nw3226 nw3226 is offline
Junior Member
 
Join Date: Jun 2021
Location: Peebles, Peebleshire, UK
Posts: 2
Default PSU II, Phono II problem

I've been using a PSU II and Phono II for years and trying to fix a low 50Hz hum last night I managed to blow it up. The "magic smoke smell' seems to be coming from the PSU.

I'm keen to have a look to see if it is recoverable, but don't have a circuit diagram any more, or any info about what the test voltages should be. If anyone can share this info it would be much appreciated.

Thanks!

Nick
Reply With Quote
  #2  
Old 12th June 2021, 06:54 AM
bob orbell bob orbell is offline
Senior Member
 
Join Date: Nov 2009
Location: kettering northants.
Posts: 2,727
Default Re: PSU II, Phono II problem

Hi Nick, Greg is the man you need to contact, he has all the circuit diagrams and can send to you, it is a very simple PSU and powering just the Phono is very low current about 4 to 5 mA. Lots of help on here. Bob
Reply With Quote
  #3  
Old 13th June 2021, 11:08 PM
nw3226 nw3226 is offline
Junior Member
 
Join Date: Jun 2021
Location: Peebles, Peebleshire, UK
Posts: 2
Default Re: PSU II, Phono II problem

Thanks Bob - I’ve sent a message to him directly. Once I have some measurements and am out of my depth (won’t be long!) I’ll come back on the forum for help/solace.
Reply With Quote
Reply


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 04:25 PM.


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