Vacuum Tubes – Electronics at Work: 1943 Educational Film

In the classic educational film titled “Electronics at Work,” produced by Westinghouse in 1943, viewers are introduced to the fascinating world of vacuum tubes. This film highlights the crucial role …

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Modern Amateur Radio Hobby – An Introduction

This video is an introduction to an international public-service and technology hobby known as ‘amateur radio’ (or ‘ham radio’). Amateur radio (also called ham radio) describes the use of radio …

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