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Hydrogen Technologies Standards form the basic framework for market ramp-up
More information
Climate change Standards and specifications support climate targets
More information
Smart Farming Standards and specifications are drivers for the digitalization of agriculture
More information

Standards [CURRENT]

DIN 44401
Letter symbols in data sheets for electronic tubes

Title (German)

Formelzeichen in Datenblättern für Elektronenröhren

Document: references other documents

Document: referenced in other documents

Responsible national committee

DKE/K 742 - Audio-, Video- und Multimediasysteme, -geräte und -komponenten

Responsible international committee

IEC/TC 25 - Quantities and units, and their letter symbols

Edition 1971-05

Original language German

Price from 34.60 €

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Table of contents

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DIN SPEC

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Terminology

Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture