Hello all.
I am gearing up to make my very first single ended output transformer. I have decided on using a double C core since it is much easier to put a double c core together than it is to sit there and stack a bunch of EI lamination's.
I know I will need an air gap between the two halves of the C cores, but I do not know the best way to actually establish this gap. I have found a few posts saying that they used a strip of thick paper in between the cores, but I'm concerned that as I band the cores together I might crush the paper and it might not result in a uniform air gap.
I have read the radiotron handbook and several articles, and they all tell me what I NEED to do, but not HOW to actually manufacture such a thing.
Im aiming for a standing DC current of around 90ma at 3K.
I am gearing up to make my very first single ended output transformer. I have decided on using a double C core since it is much easier to put a double c core together than it is to sit there and stack a bunch of EI lamination's.
I know I will need an air gap between the two halves of the C cores, but I do not know the best way to actually establish this gap. I have found a few posts saying that they used a strip of thick paper in between the cores, but I'm concerned that as I band the cores together I might crush the paper and it might not result in a uniform air gap.
I have read the radiotron handbook and several articles, and they all tell me what I NEED to do, but not HOW to actually manufacture such a thing.
Im aiming for a standing DC current of around 90ma at 3K.
Kapton if there is a smooth surface and thin is needed. Nomex for a very tough and somewhat
thicker gap. Or use fiberglass if a thick gap is needed.
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