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Antique Radio Technical Forum
AC/DC receiver and floating ground

Posted by Not A Safety Device on 02/08/2010 23:32

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 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



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 

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