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GB/T 2987-1996Letter symbols of parameter for electronic tubes (English PDF)

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Issued by

State Bureau of Technical Supervision

Level / Type

National · Recommended

Issue date

November 12, 1996

Implementation date

October 1, 1997

Scope

GB/T 2987-1996 (Letter symbols of parameter for electronic tubes) is available as an English-translated PDF.

GB/T 2987-1996 — This standard specifies the method of tube parameter combinations of symbols and symbols commonly used parameters are given all kinds of tubes.

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Document preview — GB/T 2987-1996

National Standard of the People's Republic of China

ICS: 31.1
Classification: L 35
Replacing: GB 2987-1982

Issued by: State Bureau of Technical Supervision

What this standard covers1
Document data2

What this standard covers

This standard specifies the method of tube parameter combinations of symbols and symbols commonly used parameters are given all kinds of tubes. This standard applies to tubes of technical documents, scientific literature, culture, education and other information and publications.

Document data

International classification (ICS): 31.1.

Chinese classification (CCS): L35.

Estimated length of the Chinese original: 35,362 words.

Adopted international standard: IEC 60127, NEQ; IEC 60151, NEQ; ISO 31, NEQ.

Supersedes the earlier edition GB 2987-1982.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 23 pages — is available in the English PDF.

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