[Amps] the dumb question of the month?

[R.Measures]

On Dec 11, 2004, at 2:36 AM, Steve Thompson wrote:

> On Saturday 11 December 2004 03:05, Dan Sawyer wrote:
>> All,
>>
>> I am trying to figure out ferrite output transformers. This question 
>> is:
>>
>> "What does the frequency response of a ferrite transformer look like?"
> It's a simple question, but many entire books have been written trying 
> to
> answer it.
>
> Basically, sweeping it without properly defining the source and load
> impedances is largely wasted effort, unless you are simply trying to 
> tell
> that two apparently identical transformers are actually the same.
>
> The effective way to understand what a transformer is doing is to put 
> a known
> resistance on one side, and measure the impedance looking into the 
> other.
> Personally, I wouldn't care to do it with anything other than a network
> analyser.

Network analyzers operate at QRP.  What happens at QRO with a ferrite 
device is what counts, and ferrite transformers are rarely tested at 
full-throttle.

> ...
>

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org