[Test-Equipment] Rewind a transformer!

[Randy D. Hunt]

On 2/13/2013 7:18 PM, brianclarke01 at optusnet.com.au wrote:
>
> 	Isn't this the wrong way round? You need more iron for 50 Hz than for
> 60 Hz.
>
> 	73 de Brian, VK2GCE
>
> ----- Original Message -----
>   From:"Discussion of Electronic Test Equipment"
> To:"Discussion of Electronic Test Equipment"
> Cc:
> Sent:Wed, 13 Feb 2013 17:13:28 -0800
> Subject:Re: [Test-Equipment] Rewind a transformer!
>
> On 2/13/2013 1:08 PM, David wrote:
>> On Wed, 13 Feb 2013 10:14:40 -0800, "Randy D. Hunt"
>>   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.
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> Oh, yes, 50Hz. I forgot about the lower line frequency. . .
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yes, i saw this after i wrote it. . .