diyAudio Forums Archive > Top > Amplifiers > Tubes Which one is the better design? - Click HERE for Original Thread FrancoB Need some help deciding which amp would be the best choice. http://www.worldaudiodesign.co.uk/pdf/kel80crt.pdf http://www.plitron.com/pages/Products/Audio/circuit.htm I would appreciate some help from the tube gurus. TIA Franco Sch3mat1c quote: Originally posted by FrancoB Need some help deciding which amp would be the best choice. http://www.worldaudiodesign.co.uk/pdf/kel80crt.pdf I don't like the unbalanced STP (short-tailed) but suit yourself. quote: http://www.plitron.com/pages/Products/Audio/circuit.htm Yikes, a cathodyne splitter running two pair! The only time I'd ever trust such an arrangement would be with +600V supply and a chunky triode, say 12B4, for the splitter. And then the drive requirements... A pair of 6V6, sure, but no quads, not without a buffer (a.k.a. Williamson driver circuit). Although if voltage requirements are low I'd let a CF driver pass for the buffer (also escaping the unstable tendancies of the Williamson circuit). Tim sreten I'm certainly not a tube guy technically. But I do know the second design uses "ultralinear" taps on the output transformer, and the first is a "monoblock" design, very difficult to compare. Personally my much less than guru opinion would be go for the complete WAD package. :) sreten.

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