Measurements of the electrical properties of electronic tubes and valves - Part 21: Methods of measurement of cross-modulation in electronic tubes and valves
This Recommendation is based on current practice for the measurement of cross-modulation — not intermodulation — in electronic tubes and valves. It should not be regarded as a Recommendation in the sense of a standard, because a more detailed description of the measuring methods is needed, if measuring results on the basis of these principles have to be comparable within definite tolerances.