World-Designs-Forum  

Go Back   World-Designs-Forum > World Designs > General
Reload this Page Radford SC 22 power supply
Register FAQ Members List Calendar Gallery Today's Posts Mark Forums Read

General For anything else WD or hifi

Reply
Page 2 of 2 < 1 2
 
Thread Tools Display Modes
  #11  
Old 1st April 2012, 06:18 PM
John Caswell John Caswell is offline
Super Moderator
  
Join Date: Dec 2005
Location: Wokingham, Berkshire
Posts: 1,780
Default Re: Radford SC 22 power supply
Hi Ian,
The spec for heater current seems a bit high, as there are only 4 valves ECC82/3 plus possibly a pilot light, so 5X 0.3A is only 1.5A max ie 7.5Watts plus 300V @ 15mA ie 4.5Watts a 15VA transformer rating would be sufficient.
It would also be worth replacing the flat Seimens selenium rectifier with a modern WO8 small bridge rectifier.

John
Reply With Quote
  #12  
Old 2nd April 2012, 09:48 AM
Nakman Nakman is offline
Member
  
Join Date: Jan 2009
Location: Ayrshire Scotland
Posts: 76
Default Re: Radford SC 22 power supply
Hi John

Thanks for that - Im going to advertise the Naim 12s on eBay as the fishers arent biting and I need to raise the cash

If anyone has an Radford Octal cable for sale please let me know but by PM in case I miss your post. I had a fruitless look on eBay last night but if anyone has pointers to any sellers that too would be appreciated

with thanks
Reply With Quote
Reply
Page 2 of 2 < 1 2

« Previous Thread | Next Thread »

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 05:26 PM.

Contact Us - World-Designs - Archive - Top

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