[Test-Equipment] Rewind a transformer!

[David]

On Wed, 13 Feb 2013 10:14:40 -0800, "Randy D. Hunt"
<randy_hunt960 at yahoo.com> wrote:

>On 2/12/2013 11:12 PM, Dave C wrote:
>> http://www.youtube.com/watch?v=ZVSbt5q0KF8
>>
>> Very creative...
>>
>> Dave
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>I like the idea of the transformer kit.  Did anyone notice the 
>difference in the amount of iron in the core as compared to the stock 
>transformer.  I would say the kit has about 2/3rds of the iron.  This 
>could be making his transformer run hot thereby causing him to have to 
>rewind it. . .  Just a thought.
>
>Randy, KI6WAS

Presumably he adjusted the number of primary and secondary turns while
keeping their ratio constant to achieve the recommended magnetic flux
density at 50 Hz if the cross sectional area was different.

Only two of the windings were moved to the transformer.  He kept the
old one with those two windings removed and placed the primaries of
both transformers  in parallel.