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William H. Hayt, Jr. Engineering Electromagnetics Fifth Edition McGraw Hill Book Company 0-07-027406-1 November 08 2024 new in box GE 12X4
William H. Hayt, Jr. Engineering Electromagnetics Fifth Edition McGraw Hill Book Company 0-07-027406-1 November 08 2024 new in box GE 12X4
$11.10
Description
new in box GE 12X4 tube -- and three others just like it -- tested to spec on our Paul Hart-calibrated TV7/U
not included) in my AC-heated Radio Craftsmen RC-2 mono block amplifiers and they sound great
3 milliamps' plate current and measured 2060 micromhos
FOR EXAMPLE
It was also tested on our Maxi Preamp II (as a 12AT7) for shorts
William H. Hayt, Jr. Engineering Electromagnetics Fifth Edition McGraw Hill Book Company 0-07-027406-1 November 08 2024 new in box GE 12X4This hardcover book is in excellent condition. The spine is in fine shape with no loose pages. It appears to have been dedicated by The Author to a student.
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