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Tim · 13th Jan 2021, 9:22 pm

I have been watching a few videos on transformer winding and there aren't as many as I thought. There was one where an Asian chap had used fibre glass board(exactly like PCB but without the copper) to make a bobbin. It's an excellent idea, and I suppose you must be able to get it.
I have some Paxolin sheet in various thicknesses, including some at about 1.5mm, which I think would be fine.
Presspan has also been mentioned, which I think is a special kind of cardboard. If that is the case can I use "ordinary" cardboard, if varnished?

I have some stiffish stuff used by picture framers for borders.

Comments/expert knowledge welcome!

13th Jan 2021, 9:22 pm	#17
Tim Dekatron Join Date: Jan 2003 Location: Bradford on Avon, Wiltshire, UK. Posts: 3,310	Re: Home made transformer I have been watching a few videos on transformer winding and there aren't as many as I thought. There was one where an Asian chap had used fibre glass board(exactly like PCB but without the copper) to make a bobbin. It's an excellent idea, and I suppose you must be able to get it. I have some Paxolin sheet in various thicknesses, including some at about 1.5mm, which I think would be fine. Presspan has also been mentioned, which I think is a special kind of cardboard. If that is the case can I use "ordinary" cardboard, if varnished? I have some stiffish stuff used by picture framers for borders. Comments/expert knowledge welcome! __________________ "Nothing is as dangerous as being too modern;one is apt to grow old fashioned quite suddenly."