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In the Forum: Audio Discussions
In the Thread: How to get a LOT of SET power.

Post Subject: Transformer are not an issue at all.Posted by Romy the Cat on: 3/21/2011

IslandPink wrote:
…. transformers being the big issue there as I see it ….

IslandPink,

We are so accustom to sink inside the box of full range SET amplifiers that we afraid of everything. This is the whole beauty of DSET concept – the output transformer is pretty much out of the picture of complexity or any responsible limitations.

Let look into this. What is the problem to wind a transformer with high ratio and high voltage? Listening my explanation you need to be informed that they come from a person who never winded any transformer in my life but it does not bother me too much. So, watt would be deference between 600V rated 25:1 transformer and 6000V rated of the same transformer? It will be no difference except the fact that 6000V rated transformer will have MUCH more dialectic insulation. More insulation means more space taken by insulation and it means more capacitance and less effective coupling. So, to wind high voltage transformer people go for some expensive techniques like winding in vacuum and with some complex and expensive impregnator to keep the capacitance lower and feeling tighten. However, all of those complex sectioning, widening techniques and care about capacitances are necessary to facilitate the HF knee of transformer. However, if we just do not care about HF and presume that our transformer will not care anything let say above 500Hz then to make it high voltage able is no difference then to make power transformer for high voltage. It will be just one primary and one secondary in high voltage DASET bass transformer and it will be pretty much irrelevant how they wind. Bass BSET transformer run in inductance and it come from turns per core mass and minus gap. The cost of this transformer will be pretty much the cost of the cost of core. So, I do not see any reason to be afraid of DSET out transformer.

The Cat

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