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joebog1 · 20th May 2022, 2:22 am

You havent said what thickness the iron you have is ??. As it was origionally driven by solid state,
( Strong like bull, smart like bulldozer ) it might be "very ordinary " iron ". I used to use John Sankey iron and it was a known and very predictable quantity. Exact inductances with SE transformers is pretty easy to do on paper, and VERY hard to wind on iron.
I would not be worrying so much about inductance, as waiting till its running and do the listen test.
I would suggest you forget "testing " with fancy test equipment, and listen to the music. If its what the amp builder wanted, its right.

Joe

20th May 2022, 2:22 am	#8
joebog1 Banned Join Date: Jun 2015 Location: Mareeba, North Queensland, Australia Posts: 2,704	Re: SE transformer question You havent said what thickness the iron you have is ??. As it was origionally driven by solid state, ( Strong like bull, smart like bulldozer ) it might be "very ordinary " iron ". I used to use John Sankey iron and it was a known and very predictable quantity. Exact inductances with SE transformers is pretty easy to do on paper, and VERY hard to wind on iron. I would not be worrying so much about inductance, as waiting till its running and do the listen test. I would suggest you forget "testing " with fancy test equipment, and listen to the music. If its what the amp builder wanted, its right. Joe