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Paper Abstract and Keywords
Presentation 2022-08-04 16:30
SPICE Modeling of Vacuum Tubes for Low Plate Voltage -- Comparison of Characteristics for Triode Connection of Pentodes and Triodes --
Mitsuharu Arimura (Shonan Inst. Tech.) EA2022-33
Abstract (in Japanese) (See Japanese page) 
(in English) We measured the Ep-Ip characteristics of vacuum tubes and created SPICE models for low plate voltages (about 10V to 30V). By fitting the Cohen-H'{e}lie model to the measured Ep-Eg-Ip characteristics using a nonlinear least-squares method, a model curve that relatively matches the measured data is drawn. The characteristic is measured for pentode tubes with triode connection and triode tubes. This experiment revealed that good characteristics can be obtained even at low plate voltages. Since the characteristics of vacuum tubes at this level of plate voltage cannot be read from data sheets, it is meaningful to create a model of vacuum tubes at low plate voltages. Another advantage is that the clarification of the tube model at low voltage from 10V to 30V enables the use of vacuum tubes for purposes other than the audio circuit.
Keyword (in Japanese) (See Japanese page) 
(in English) Vacuum Tube / Low Voltage Characteristics / Ep-Ip Characteristics / SPICE Model / Non-Linear Least-Square Method / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 144, EA2022-33, pp. 26-31, Aug. 2022.
Paper # EA2022-33 
Date of Issue 2022-07-28 (EA) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee EA ASJ-H  
Conference Date 2022-08-04 - 2022-08-05 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To EA 
Conference Code 2022-08-EA-H 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) SPICE Modeling of Vacuum Tubes for Low Plate Voltage 
Sub Title (in English) Comparison of Characteristics for Triode Connection of Pentodes and Triodes 
Keyword(1) Vacuum Tube  
Keyword(2) Low Voltage Characteristics  
Keyword(3) Ep-Ip Characteristics  
Keyword(4) SPICE Model  
Keyword(5) Non-Linear Least-Square Method  
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1st Author's Name Mitsuharu Arimura  
1st Author's Affiliation Shonan Institute of Technology (Shonan Inst. Tech.)
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Speaker Author-1 
Date Time 2022-08-04 16:30:00 
Presentation Time 30 minutes 
Registration for EA 
Paper # EA2022-33 
Volume (vol) vol.122 
Number (no) no.144 
Page pp.26-31 
#Pages 6 
Date of Issue 2022-07-28 (EA) 

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