音響制作工藝 DIY Audio Craft

自作派技術交流 DIYer experience sharing
It is currently Tue Sep 07, 2010 5:25 am

View unanswered posts | View active topics


Board index » 贊助商; Sponsor Board » 給我小買部意見 Suggestion to my shop

All times are UTC + 8 hours




Post new topic Reply to topic  Page 1 of 1
  [ 3 posts ] 
  Previous topic | Next topic 
Author Message
AllanK
 Post subject: Filament Transformer output connection
PostPosted: Wed Apr 07, 2010 10:06 pm 
Offline
Senior member
User avatar

Joined: Sat Sep 30, 2006 8:01 am
Posts: 100
Location: Tai Po, HK
Hi Chung,

I just bought a pair of 2.5 CT (007TF25-EU) transformer with output marked as 0V - 1.25V - 0V - 1.25V

In order to get 2.5V output, should I connect both 0V - 0V together, and both wires lead out of 1.25V for filament?

or I should connect the 2nd and 3rd wire together and use 1st and 4th wire as 2.5V output for filament???

Regards,

Allan
Top
 Profile  
 
amp_mangler
 Post subject: Re: Filament Transformer output connection
PostPosted: Thu Apr 08, 2010 7:36 am 
Offline
Senior member

Joined: Sun Jul 05, 2009 7:07 am
Posts: 68
hello Allen,

connect 2nd and 3rd wires together, hat becomes centre tap i.e. 1.25 volts connect to second winding of 0 volts, then the first wire, 0volts and 4th wire, 2.5 volts becomes the heater circuit, normally the bias is connected to the centre tap

regards
Joe
Top
 Profile  
 
AllanK
 Post subject: Re: Filament Transformer output connection
PostPosted: Thu Apr 08, 2010 9:43 pm 
Offline
Senior member
User avatar

Joined: Sat Sep 30, 2006 8:01 am
Posts: 100
Location: Tai Po, HK
Thank You!
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 3 posts ] 

Board index » 贊助商; Sponsor Board » 給我小買部意見 Suggestion to my shop

All times are UTC + 8 hours


Who is online

Users browsing this forum: No registered users and 1 guest

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:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group