File:NLC416-08jh003397-23480 真空管收音機的放大法.pdf

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Original file (864 × 1,135 pixels, file size: 1.73 MB, MIME type: application/pdf, 77 pages)

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真空管收音機的放大法   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Author
俞子夷編
image of artwork listed in title parameter on this page
Title
真空管收音機的放大法
Publisher
中華書局[發行] (上海)
Description

目錄
第一章 真空管的放大作用
第二章 放大的裝法
第三章 不用變壓器的放大法
第四章 助力式收音機裝法
第五章 檢波前的放大
第六章 一燈兩用的收音機
第七章 雙柵燈
第八章 別人家試有成效的一燈收音機
第九章 室內天線

Language Chinese
Publication date 民國24[1935]
Source
institution QS:P195,Q732353
(民國時期文獻 民國圖書)
主題
InfoField
電子管收音機
中圖分類
InfoField
TN859
拼音題名
InfoField
zhen kong guan shou yin ji de fang da fa
載體形態
InfoField
66頁

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Public domain
This image is now in the public domain in China because its term of copyright has expired.

According to copyright laws of the People's Republic of China (with legal jurisdiction in the mainland only, excluding Hong Kong and Macao), amended November 11, 2020, Works of legal persons or organizations without legal personality, or service works, or audiovisual works, enter the public domain 50 years after they were first published, or if unpublished 50 years from creation. For photography works of natural persons whose copyright protection period expires before June 1, 2021 belong to the public domain. All other works of natural persons enter the public domain 50 years after the death of the creator.
According to copyright laws of Republic of China (currently with jurisdiction in Taiwan, Penghu, Kinmen, Matsu, etc.), all photographs and cinematographic works, and all works whose copyright holder is a juristic person, enter the public domain 50 years after they were first published, or if unpublished 50 years from creation, and all other applicable works enter the public domain 50 years after the death of the creator.

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Date/TimeThumbnailDimensionsUserComment
current20:32, 10 June 2023Thumbnail for version as of 20:32, 10 June 2023864 × 1,135, 77 pages (1.73 MB)PencakeBot (talk | contribs)Upload 真空管收音機的放大法 (1/1) by 俞子夷編 (batch task; nlc:data_416,08jh003397,23480; 民國圖書.3; 真空管收音機的放大法)

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