BS 4319-1:1968

This standard BS 4319-1:1968 Methods of measurement of the electrical properties of electronic tubes and valves (excluding microwave devices) is classified in these ICS categories:

• 31.100 Electronic tubes

This Part of BS 4319 outlines conditions to be followed when measuring input and output admittances of electronic tubes and valves (excluding microwave devices). It does not include measuring methods.

These conditions include:

1. Definitions of the admittances to be measured.
2. Measuring conditions.
3. Details of a standard adaptor and shielding.

At present these apply to tubes and valves having the following bases:

Small button 7-pin miniature base	BS 448-2.B7Ga
Small button noval 9-pin base	BS 448-B9Aa
B8A/Rimlock base	BS 448-2.B8Aa

^a BS 448, “Dimensions of electronic tubes and valves”.

Figure 1 — Dimensions associated with the measurement of input and output admittances

Gives conditions but not measuring methods. Other parts will cover terminology, theory, measuring conditions, basic circuits, and methods of measurement.