home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   rec.audio.tubes      Tube-based amplifiers... that go to 11      52,877 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 51,872 of 52,877   
   Phil Allison to All   
   Re: Bridge or Center Tap?   
   27 Sep 12 12:34:01   
   
   From: phil_a@tpg.com.au   
      
   "Charles"   
   > "Paul D. Spiegel"   
   > For my next project I have acquired a transformer with two identical 450v   
   > secondary windings.  I could put the windings in parallel and use a bridge   
   > rectifier.  Or, I could put the windings in series and ground the coupling   
   > for a 450-0-450 configuration to use with a pair of diodes.   
   >   
   >   
   > If you choose parallel connected secondary windings, a power meter test is   
   > one way to be sure.  Fire up the transformer and measure the input power   
   > (primary) with the secondary windings not connected.  Repeat the test with   
   > the secondary windings connected in parallel.  If the windings are   
   > identical, the primary power will not change.   
      
      
    ** Be far easier to do the test I suggested -  OR, with your test, use a   
   simple current meter in the primary  -  OR just wait and see if the tranny   
   warms any more than usual.   
      
      
      
   ...   Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca