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In Reply to: RE: OTL Circuits posted by Lew on April 07, 2008 at 08:54:42
Hi Lew, www.tubecad.com has a lot of information and saying the "Futterman" OTL is a kind of Circltron, in order word "Totem Pole" is also a type of Circltron, but don't think some totem pole type amp makers like to be classed as Futterman as they are different patents which are quite distinst. Likewise Futteman has 2 distint patents, which one would refer to? To me by just looking at output type is no sufficient to class it.
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