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S. Oshimo, K. Takemoto, and T. Hamasaki, "Unified Modeling for Series of Miniature Twin Triode Tube," Paper 9851, (2017 October.). doi: S. Oshimo, K. Takemoto, and T. Hamasaki, "Unified Modeling for Series of Miniature Twin Triode Tube," Paper 9851, (2017 October.). doi:
Abstract: Unification of high precision SPICE modeling for the series of MT vacuum tube has been succeeful for the first time. The model formula was validated based on the comparison of electrode and space physical dimensions among 12AX7, 12AU7, 12AY7, and 12AT7 associated with various aspects of properties not limited to the general Ip-Vp family curves. As a result, the non-linear behavior of the grid current and the plate current as a function of plus/minus grid voltage were able to be expressed entirely by 17 parameters of the newly proposed SPICE model, in which 4 tube type specific parameters  and 4 universal parameters are constant and matching of twin valves of each tube as well as product dispersion are fitted by 9 variable parameters.

@article{oshimo2017unified,
author={oshimo, shiori and takemoto, kanako and hamasaki, toshihiko},
journal={journal of the audio engineering society},
title={unified modeling for series of miniature twin triode tube},
year={2017},
volume={},
number={},
pages={},
doi={},
month={october},} @article{oshimo2017unified,
author={oshimo, shiori and takemoto, kanako and hamasaki, toshihiko},
journal={journal of the audio engineering society},
title={unified modeling for series of miniature twin triode tube},
year={2017},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={unification of high precision spice modeling for the series of mt vacuum tube has been succeeful for the first time. the model formula was validated based on the comparison of electrode and space physical dimensions among 12ax7, 12au7, 12ay7, and 12at7 associated with various aspects of properties not limited to the general ip-vp family curves. as a result, the non-linear behavior of the grid current and the plate current as a function of plus/minus grid voltage were able to be expressed entirely by 17 parameters of the newly proposed spice model, in which 4 tube type specific parameters  and 4 universal parameters are constant and matching of twin valves of each tube as well as product dispersion are fitted by 9 variable parameters.},}

TY - paper
TI - Unified Modeling for Series of Miniature Twin Triode Tube
SP - EP -
AU - Oshimo, Shiori
AU - Takemoto, Kanako
AU - Hamasaki, Toshihiko
PY - 2017
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2017 TY - paper
TI - Unified Modeling for Series of Miniature Twin Triode Tube
SP - EP -
AU - Oshimo, Shiori
AU - Takemoto, Kanako
AU - Hamasaki, Toshihiko
PY - 2017
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2017
AB - Unification of high precision SPICE modeling for the series of MT vacuum tube has been succeeful for the first time. The model formula was validated based on the comparison of electrode and space physical dimensions among 12AX7, 12AU7, 12AY7, and 12AT7 associated with various aspects of properties not limited to the general Ip-Vp family curves. As a result, the non-linear behavior of the grid current and the plate current as a function of plus/minus grid voltage were able to be expressed entirely by 17 parameters of the newly proposed SPICE model, in which 4 tube type specific parameters  and 4 universal parameters are constant and matching of twin valves of each tube as well as product dispersion are fitted by 9 variable parameters.