115% ili 150% se dobija (izgleda) sto skupljim trafooom .
sa 1W ide 0.005% i to na 100Hz a opseg sviranja je 1.5Hz do 200kHz (-3dB na 500kHz) lampe mogu da sanjaju
da idu i sviraju dotle i sa toliko malim THD-om...
Pazi šta ČIČA (Nelson) kaže:
his quality seems to be dependent on the specifics of the load-line. The
amplitude distribution of the 2nd and 3rd
harmonic and phase of the 2nd harmonic
distortion vary as you adjust the supply voltage and the bias current. You can
simply adjust for lowest distortion, or you can tweak these parameters to vary
the sonic signature. It seems that Hiraga favored a ratio of 2
nd to 3rd harmonic
with the 2nd harmonic being dominant, but I am not aware that he specified the
phase...
i onda prica o pozeljnom kvalitetu transformatrora
Clearly one potential improvement is to seek out
and pay a lot more for
a better
transformer, one with more and perhaps better magnetic material and a wider
high frequency bandwidth.
http://www.firstwatt.com/pdf/art_sit_nemesis.pdf
ko ima pravi trafo (koji kosta Boga Oca) dobro nastelovan bias i shemu (kao onaj Slon Japanac) moze da dogura i do 0.0005% THD-a