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Statistical analysis of manufacturer difference for miniature triode tube characteristics based on physical model parameters
Author(s) -
Inui Masaki,
Sasaki Reo,
Hamasaki Toshihiko
Publication year - 2020
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.12241
Subject(s) - triode , tube (container) , vacuum tube , distortion (music) , similarity (geometry) , statistical analysis , trigonometric functions , total harmonic distortion , acoustics , materials science , mathematics , engineering , mechanical engineering , electronic engineering , computer science , electrical engineering , physics , composite material , statistics , amplifier , voltage , artificial intelligence , geometry , image (mathematics) , cmos , capacitor
The sound of the tube amp due to the harmonic distortion has been thought to depend not only on the vacuum tube type but also on the vacuum tube manufacturer and individual differences. However, quantitative differences in tube characteristics of the manufacturer have yet to be revealed. In this study, the characteristics of the triode 12 AX 7 of the five major manufacturers were analyzed based on statistical analysis of advanced physical model parameter sets. Tube characteristics were divided into three groups by cosine similarity and group clustering method. As a result, we succeeded for the first time quantitatively combining tube distortion characteristics and tube characteristics.