Re: [Phys-l] Step down transformer trouble

["Dr. Keith S. Taber" <kst24@cam.ac.uk>]

Just a thought, but is the 16V measured on open circuit, or when the 
bell is connected up?

Keith



At 05:58 -0400 6/7/11, Paul Lulai wrote:
> Hi.
> We can't keep our doorbell stepdown transformer working.  I thought 
> i would check this group for thoughts.
> The transformer drops to 16v.  That matches the input for our 
> doorbell. The transformer is connected to ground and both the black 
> and white house wires (as directed on installation instructions). 
> It is installed onto a standard junction box with (which has a cfl 
> attached).
> I've changed transformers multiple times.  I checked the doorbell. 
> I found no problem, but thought a $20 change of bells might so it, 
> so I changed it anyway (after the 2nd transformer).
> Any thoughts?
>
> Paul Lulai
> Physics Teacher
> St Anthony Village Senior High
> 3303 33rd Ave
> St Anthony Village MN 55418
>
> (w) 612-706-1146
>
>
> _______________________________________________
> Forum for Physics Educators
> Phys-l@carnot.physics.buffalo.edu
> https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l


--
Dr. Keith S. Taber

http://www.educ.cam.ac.uk/staff/taber.html
http://people.pwf.cam.ac.uk/kst24/

Author: Progressing Science Education - Constructing the Scientific 
Research Programme into the Contingent Nature of Learning Science 
(Springer: 2009)

University Senior Lecturer in Science Education

Science Education Centre
University of Cambridge Faculty of Education
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United Kingdom

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