[Shop-talk] Mystery of the blown transformers

[John T. Blair]

At 08:20 AM 3/2/2008 -0600, Jim Stone wrote:

>The original ones does say "Warning: Fused secondary.  Do not short."  so
>there is a little more than iron and wire in there.  I have thought about
>opening it up and seeing if the fuse could be replaced, but have not.  At
>least not yet.

Jim,

This is a pretty common thing to happen.  I don't know if you remeber the
old TRS80 Model I computers.  But they had a transformer to suppy power to
the keyboard computer.  It had a fuse inside it.  (I don't remember is it
was on the primary or secondary.)  These fuses would blow, and then your
computer didn't work.  The energetic owners learned to cut the Xformer case
open and replace the fuse.

John

John T. Blair  WA4OHZ     email:  jblair1948 at cox.net
Va. Beach, Va             
Phone:  (757) 495-8229

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