Also, open short method is for a conventional two winding transformer.
Unun demonstrated is an auto-transformer. It is impossible to fabricate
a matching two winding transformer with same k value as an auto
transformer. A matching two winding transformer will always have k value
slightly lower than an auto transformer. This is because an auto
transformer has a k value of one for the common winding. Replacing
common wire with two wires, to form a conventional transformer will pick
up k < 1 for the two wire replacement.
John KN5L
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On 5/21/19 8:33 AM, John KN5L wrote:
Hi Steve,
I've tried measuring k near one using inductance measurements with
limited success.
Confirming SimSmith matches inductance measurements is a good question.
documents the process using a transformer with measurable k value.
Process compares SimSmith matching method, open short method, and
Series-adding Series-opposing method.
After years of using SimSmith, I'm rather confident with the transformer
model.
John KN5L
On 5/21/19 8:16 AM, Steven Dick wrote:
Wow that k value is excellent. Can you confirm with open/short test just to
verify that actual measurement is in agreement with the Sim Smith model?
Thanks
