Physically-Based Large-Signal Modeling for Miniature Type Dual Triode Tube

Oshimo S, Takemoto K, Hamasaki T. Physically-Based Large-Signal Modeling for Miniature Type Dual Triode Tube. In: AES Convention 140. Audio Engineering Society; 2016. Paper 9485. Available from: https://aes.org/publications/elibrary-page/?id=18184

@inproceedings{Oshimo2016_18184,
  author = {Oshimo, Shiori and Takemoto, Kanako and Hamasaki, Toshihiko},
  title = {{Physically-Based Large-Signal Modeling for Miniature Type Dual Triode Tube}},
  booktitle = {AES Convention 140},
  note = {Paper 9485},
  year = {2016},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=18184}
}

TY  - CPAPER
TI  - Physically-Based Large-Signal Modeling for Miniature Type Dual Triode Tube
AU  - Oshimo, Shiori
AU  - Takemoto, Kanako
AU  - Hamasaki, Toshihiko
T2  - AES Convention 140
M1  - Paper 9485
PY  - 2016
DA  - 2016/05/06
UR  - https://aes.org/publications/elibrary-page/?id=18184
PB  - Audio Engineering Society
LA  - en
AB  - A precise SPICE model for miniature (MT) triode tubes of high-µ 12AX7 and medium-µ 12AU7 is proposed, based on the physical analysis of the measurement results. Comparing the characteristics between these tubes, the grid current at lower plate voltage and positive grid bias condition is modeled successfully with novel perveance parameters for the first time, though it was known that the perveance depends on both grid and plate bias. It is shown that the modulation factor of the space charge for the MT triodes is different from the other classic tubes. The model is implemented in LTspice to result in a good replication for a variation of three-order magnitude of grid current and cathode current.
ER  -