SET Asylum

Single Ended Triodes (SETs), the ultimate tube lovers dream.

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Have a look at this URL

Posted by Frihed89 on January 22, 2012 at 04:41:53:
Andy Gove has written on the topic of interstage drive extensively. The URL below was accessible, but you can google on Andy Gove + interstage transformers to find more complete statements by him.

My experience is that the sonic variation (good to bad)in cap coupled SETs is smaller than for transformer coupled SETs. The best transformer coupled amps I have heard sound better than the best cap coupled ones, but a number I have heard do not sound as good as cap coupled SETs.

This suggests that as easy as some transformer coupled amps look (see the circuit design of the Audio note kits interstage monos at http://www.audionotekits.com/monob01.htm), they are not as easy to implement as cap coupled circuits, and a lot depends on the transformer quality ($$$$$$$$).