Home  Resources  References  Tubes  Forums  Links  Support  Sale  Search 



   < Previous Message Index Next Message >   


Antique Radio Technical Forum
AC/DC receiver and floating ground

Posted by Terry Decker on 02/09/2010 00:03

:The so called dim bulb tester offers no isolation and is not by nay stretch of the imagination a substitute for an isolation transformer. It is only a way to show whether or not the radio is drawing excessive current.

I'm glad that point was made. I later realised that my post was poorly worded. Consider me severely whacked on the knuckles. My point, poorly made though it was, is that if the light IS bright, a short to ground could very likely be the cause. Thanks for clearing that up.
You still need an isolation transformer.
Terry
:
::I hope you have an isolation transformer. If not you are playing a dangerous game. Even with a "floating" ground, there still exists a potential for a lethal shock. If you don't have a transformer, you might try the "Light Bulb" tester. Simply insert a lamp fixture in series with an extension cord. Use a 60 watt bulb. If the light stays dim, proceed. If the light is bright-stop! You either have a problem in the power supply, or a short to ground.
::Good luck,
::don't blow yourself up
::and
::Have Fun!
::terry
::
::IPAddress: ***.28.48.106
:
:IPAddress: ***.235.3.116

IPAddress: ***.28.48.106



AC/DC receiver and floating ground 
Scott 02/06/2010 17:49 
Warren 02/06/2010 19:51 
Lewis L 02/06/2010 21:52 
Scott 02/07/2010 07:38 
Grounds For Electrons 02/08/2010 13:17 
Terry Decker 02/08/2010 19:39 
Not A Safety Device 02/08/2010 23:32 
Terry Decker 02/09/2010 00:03 
Thomas Dermody 02/09/2010 00:18 
Norm Leal 02/09/2010 00:18 
Warren 02/09/2010 01:03 
Scott 02/09/2010 07:51 
BobH 02/10/2010 14:53 

   < Previous Message Index Next Message >   




© 1996-2004 Nostalgia Air