IS 4147 : 1981 Methods of measurements for electron tubes receiving and transmitting tubes

1 Scope

1.1 This standard deals with the methods of measurements of thecharacteristics of electron tubes of the receiving and transmitting types.

2 References

IS 2 :1960Rules for rounding off numerical values

IS 589 :1961Basic climatic and mechanical durability tests for components for electrical equipment

IS 1885 : Part IV : 1973 Electrotechnical vocabulary:Part IV Electron tubes, Section 1 Common terms