IWISTAO amorphous core pp transformers

[wisdomxw]

Should be okay!

 

[DrowningNotWaving]

The core is not British-made. I doubt British make anything nowadays other than financial derivatives.

These are Chinese amorphous cores. I bought 20 sets of these from Alibaba for $6 apiece plus shipping.

FYI

https://www.wiltan.co.uk

https://ascocomponents.co.uk/laminations/c-cores/

https://ppmpower.co.uk/products/magnetic-components/magnetic-cores/

You didn’t try very hard. 1 minute of google search resulted in these 3 manufacturers of wound cores in the UK. There are probably more…

My 2 cents, ymmv, dyor

 

[sser2]

They are resellers, not manufacturers.

 

[sser2]

Whether these cores are amorphous or nanocrystalline, and what is the exact material composition I don't know. The lamination thickness of my Alibaba cores is about 1 mil, which is consistent with amorphous/nanocrystalline. The seller provides information about initial permeability (about 20,000), Bmax = 1.56T (a bit lower than silicon steel), and Al (uH per turn). The core in question is KMAC-80, which is the equivalent of Hitachi AMCC-80. See the link.https://www.alibaba.com/product-det...html?spm=a2700.shop_index.86.2.51405e01U10MRu

The measured inductance in a post above (161 H) tells that the core indeed has high permeability. A typical inductance of an EL-84 PP transformer is about 30-50 H.

 

[wisdomxw]

The measured inductance in a post above (161 H) tells that the core indeed has high permeability. A typical inductance of an EL-84 PP transformer is about 30-50 H.

Agree!